Home / 390,613.19-539,061.55-229,466.82

Finding the Fourth Proportional to 390,613.19, 539,061.55 and 229,466.82

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Solution

The fourth proportional to 390,613.19, 539,061.55 and 229,466.82 is: 316,673.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,613.19 : 539,061.55 = 229,466.82 : x
  2. Step 2: Convert to fraction form
    390,613.19/539,061.55 = 229,466.82/x
  3. Step 3: Cross multiply
    390,613.19x = 539,061.55 × 229,466.82
  4. Step 4: Simplify right side
    390,613.19x = 123,696,741,110.59
  5. Step 5: Solve for x
    x = 123,696,741,110.59/390,613.19
  6. Step 6: Final answer
    x = 316,673.24

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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.