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Finding the Fourth Proportional to 610,000.92, 915,123.78 and 210,656.34

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Solution

The fourth proportional to 610,000.92, 915,123.78 and 210,656.34 is: 316,026.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,000.92 : 915,123.78 = 210,656.34 : x
  2. Step 2: Convert to fraction form
    610,000.92/915,123.78 = 210,656.34/x
  3. Step 3: Cross multiply
    610,000.92x = 915,123.78 × 210,656.34
  4. Step 4: Simplify right side
    610,000.92x = 192,776,626,141.77
  5. Step 5: Solve for x
    x = 192,776,626,141.77/610,000.92
  6. Step 6: Final answer
    x = 316,026.78

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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.