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Finding the Fourth Proportional to 245,412.20, 368,118.30 and 243,662.60

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Solution

The fourth proportional to 245,412.20, 368,118.30 and 243,662.60 is: 365,493.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,412.20 : 368,118.30 = 243,662.60 : x
  2. Step 2: Convert to fraction form
    245,412.20/368,118.30 = 243,662.60/x
  3. Step 3: Cross multiply
    245,412.20x = 368,118.30 × 243,662.60
  4. Step 4: Simplify right side
    245,412.20x = 89,696,662,085.58
  5. Step 5: Solve for x
    x = 89,696,662,085.58/245,412.20
  6. Step 6: Final answer
    x = 365,493.90

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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.