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Finding the Fourth Proportional to 306,062.85, 458,875.58 and 137,445.15

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Solution

The fourth proportional to 306,062.85, 458,875.58 and 137,445.15 is: 206,069.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,062.85 : 458,875.58 = 137,445.15 : x
  2. Step 2: Convert to fraction form
    306,062.85/458,875.58 = 137,445.15/x
  3. Step 3: Cross multiply
    306,062.85x = 458,875.58 × 137,445.15
  4. Step 4: Simplify right side
    306,062.85x = 63,070,222,237.21
  5. Step 5: Solve for x
    x = 63,070,222,237.21/306,062.85
  6. Step 6: Final answer
    x = 206,069.51

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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.