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Finding the Fourth Proportional to 610,159.67, 915,274.34 and 205,189.37

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Solution

The fourth proportional to 610,159.67, 915,274.34 and 205,189.37 is: 307,795.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,159.67 : 915,274.34 = 205,189.37 : x
  2. Step 2: Convert to fraction form
    610,159.67/915,274.34 = 205,189.37/x
  3. Step 3: Cross multiply
    610,159.67x = 915,274.34 × 205,189.37
  4. Step 4: Simplify right side
    610,159.67x = 187,804,565,201.77
  5. Step 5: Solve for x
    x = 187,804,565,201.77/610,159.67
  6. Step 6: Final answer
    x = 307,795.77

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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.