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Finding the Fourth Proportional to 610,312.57, 915,468.83 and 205,470.93

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Solution

The fourth proportional to 610,312.57, 915,468.83 and 205,470.93 is: 308,206.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,312.57 : 915,468.83 = 205,470.93 : x
  2. Step 2: Convert to fraction form
    610,312.57/915,468.83 = 205,470.93/x
  3. Step 3: Cross multiply
    610,312.57x = 915,468.83 × 205,470.93
  4. Step 4: Simplify right side
    610,312.57x = 188,102,231,068.54
  5. Step 5: Solve for x
    x = 188,102,231,068.54/610,312.57
  6. Step 6: Final answer
    x = 308,206.38

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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.