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Finding the Fourth Proportional to 610,161.36, 915,276.87 and 205,191.06

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Solution

The fourth proportional to 610,161.36, 915,276.87 and 205,191.06 is: 307,798.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,161.36 : 915,276.87 = 205,191.06 : x
  2. Step 2: Convert to fraction form
    610,161.36/915,276.87 = 205,191.06/x
  3. Step 3: Cross multiply
    610,161.36x = 915,276.87 × 205,191.06
  4. Step 4: Simplify right side
    610,161.36x = 187,806,631,148.78
  5. Step 5: Solve for x
    x = 187,806,631,148.78/610,161.36
  6. Step 6: Final answer
    x = 307,798.30

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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.