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Finding the Fourth Proportional to 401,229.73, 553,753.67 and 248,317.12

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Solution

The fourth proportional to 401,229.73, 553,753.67 and 248,317.12 is: 342,712.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,229.73 : 553,753.67 = 248,317.12 : x
  2. Step 2: Convert to fraction form
    401,229.73/553,753.67 = 248,317.12/x
  3. Step 3: Cross multiply
    401,229.73x = 553,753.67 × 248,317.12
  4. Step 4: Simplify right side
    401,229.73x = 137,506,513,897.86
  5. Step 5: Solve for x
    x = 137,506,513,897.86/401,229.73
  6. Step 6: Final answer
    x = 342,712.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.