Home / 338,721.60-508,082.40-283,609.20

Finding the Fourth Proportional to 338,721.60, 508,082.40 and 283,609.20

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Solution

The fourth proportional to 338,721.60, 508,082.40 and 283,609.20 is: 425,413.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,721.60 : 508,082.40 = 283,609.20 : x
  2. Step 2: Convert to fraction form
    338,721.60/508,082.40 = 283,609.20/x
  3. Step 3: Cross multiply
    338,721.60x = 508,082.40 × 283,609.20
  4. Step 4: Simplify right side
    338,721.60x = 144,096,842,998.08
  5. Step 5: Solve for x
    x = 144,096,842,998.08/338,721.60
  6. Step 6: Final answer
    x = 425,413.80

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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.