Home / 401,115.60-553,541.04-231,350.40

Finding the Fourth Proportional to 401,115.60, 553,541.04 and 231,350.40

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Solution

The fourth proportional to 401,115.60, 553,541.04 and 231,350.40 is: 319,264.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,115.60 : 553,541.04 = 231,350.40 : x
  2. Step 2: Convert to fraction form
    401,115.60/553,541.04 = 231,350.40/x
  3. Step 3: Cross multiply
    401,115.60x = 553,541.04 × 231,350.40
  4. Step 4: Simplify right side
    401,115.60x = 128,061,941,020.42
  5. Step 5: Solve for x
    x = 128,061,941,020.42/401,115.60
  6. Step 6: Final answer
    x = 319,264.42

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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.