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Finding the Fourth Proportional to 547,765.60, 821,648.40 and 248,130.40

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Solution

The fourth proportional to 547,765.60, 821,648.40 and 248,130.40 is: 372,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,765.60 : 821,648.40 = 248,130.40 : x
  2. Step 2: Convert to fraction form
    547,765.60/821,648.40 = 248,130.40/x
  3. Step 3: Cross multiply
    547,765.60x = 821,648.40 × 248,130.40
  4. Step 4: Simplify right side
    547,765.60x = 203,875,946,151.36
  5. Step 5: Solve for x
    x = 203,875,946,151.36/547,765.60
  6. Step 6: Final answer
    x = 372,195.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.