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Finding the Fourth Proportional to 610,285.19, 915,323.29 and 161,010.69

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Solution

The fourth proportional to 610,285.19, 915,323.29 and 161,010.69 is: 241,488.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,285.19 : 915,323.29 = 161,010.69 : x
  2. Step 2: Convert to fraction form
    610,285.19/915,323.29 = 161,010.69/x
  3. Step 3: Cross multiply
    610,285.19x = 915,323.29 × 161,010.69
  4. Step 4: Simplify right side
    610,285.19x = 147,376,830,660.98
  5. Step 5: Solve for x
    x = 147,376,830,660.98/610,285.19
  6. Step 6: Final answer
    x = 241,488.46

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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.