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Finding the Fourth Proportional to 424,101, 635,989.89 and 187,314.51

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Solution

The fourth proportional to 424,101, 635,989.89 and 187,314.51 is: 280,900.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,101 : 635,989.89 = 187,314.51 : x
  2. Step 2: Convert to fraction form
    424,101/635,989.89 = 187,314.51/x
  3. Step 3: Cross multiply
    424,101x = 635,989.89 × 187,314.51
  4. Step 4: Simplify right side
    424,101x = 119,130,134,610.30
  5. Step 5: Solve for x
    x = 119,130,134,610.30/424,101
  6. Step 6: Final answer
    x = 280,900.39

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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.