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Finding the Fourth Proportional to 438,980.98, 658,471.74 and 123,437.89

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Solution

The fourth proportional to 438,980.98, 658,471.74 and 123,437.89 is: 185,156.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,980.98 : 658,471.74 = 123,437.89 : x
  2. Step 2: Convert to fraction form
    438,980.98/658,471.74 = 123,437.89/x
  3. Step 3: Cross multiply
    438,980.98x = 658,471.74 × 123,437.89
  4. Step 4: Simplify right side
    438,980.98x = 81,280,362,210.23
  5. Step 5: Solve for x
    x = 81,280,362,210.23/438,980.98
  6. Step 6: Final answer
    x = 185,156.91

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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.