Home / 347,147.60-520,721.40-97,829.60

Finding the Fourth Proportional to 347,147.60, 520,721.40 and 97,829.60

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Solution

The fourth proportional to 347,147.60, 520,721.40 and 97,829.60 is: 146,744.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,147.60 : 520,721.40 = 97,829.60 : x
  2. Step 2: Convert to fraction form
    347,147.60/520,721.40 = 97,829.60/x
  3. Step 3: Cross multiply
    347,147.60x = 520,721.40 × 97,829.60
  4. Step 4: Simplify right side
    347,147.60x = 50,941,966,273.44
  5. Step 5: Solve for x
    x = 50,941,966,273.44/347,147.60
  6. Step 6: Final answer
    x = 146,744.40

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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.