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Finding the Fourth Proportional to 389,951.96, 585,160.98 and 358,225.88

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Solution

The fourth proportional to 389,951.96, 585,160.98 and 358,225.88 is: 537,552.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,951.96 : 585,160.98 = 358,225.88 : x
  2. Step 2: Convert to fraction form
    389,951.96/585,160.98 = 358,225.88/x
  3. Step 3: Cross multiply
    389,951.96x = 585,160.98 × 358,225.88
  4. Step 4: Simplify right side
    389,951.96x = 209,619,807,002.16
  5. Step 5: Solve for x
    x = 209,619,807,002.16/389,951.96
  6. Step 6: Final answer
    x = 537,552.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.