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Finding the Fourth Proportional to 610,445.50, 915,799.47 and 205,677.94

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Solution

The fourth proportional to 610,445.50, 915,799.47 and 205,677.94 is: 308,561.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,445.50 : 915,799.47 = 205,677.94 : x
  2. Step 2: Convert to fraction form
    610,445.50/915,799.47 = 205,677.94/x
  3. Step 3: Cross multiply
    610,445.50x = 915,799.47 × 205,677.94
  4. Step 4: Simplify right side
    610,445.50x = 188,359,748,442.69
  5. Step 5: Solve for x
    x = 188,359,748,442.69/610,445.50
  6. Step 6: Final answer
    x = 308,561.12

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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.