Home / 421,677.76-581,929.08-230,691.16

Finding the Fourth Proportional to 421,677.76, 581,929.08 and 230,691.16

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Solution

The fourth proportional to 421,677.76, 581,929.08 and 230,691.16 is: 318,361.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,677.76 : 581,929.08 = 230,691.16 : x
  2. Step 2: Convert to fraction form
    421,677.76/581,929.08 = 230,691.16/x
  3. Step 3: Cross multiply
    421,677.76x = 581,929.08 × 230,691.16
  4. Step 4: Simplify right side
    421,677.76x = 134,245,894,502.93
  5. Step 5: Solve for x
    x = 134,245,894,502.93/421,677.76
  6. Step 6: Final answer
    x = 318,361.33

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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.