Home / 400,143.60-552,272.04-257,082.48

Finding the Fourth Proportional to 400,143.60, 552,272.04 and 257,082.48

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Solution

The fourth proportional to 400,143.60, 552,272.04 and 257,082.48 is: 354,821.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,143.60 : 552,272.04 = 257,082.48 : x
  2. Step 2: Convert to fraction form
    400,143.60/552,272.04 = 257,082.48/x
  3. Step 3: Cross multiply
    400,143.60x = 552,272.04 × 257,082.48
  4. Step 4: Simplify right side
    400,143.60x = 141,979,465,677.86
  5. Step 5: Solve for x
    x = 141,979,465,677.86/400,143.60
  6. Step 6: Final answer
    x = 354,821.28

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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.