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Finding the Fourth Proportional to 425,316.02, 638,098.77 and 125,804.48

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Solution

The fourth proportional to 425,316.02, 638,098.77 and 125,804.48 is: 188,743.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,316.02 : 638,098.77 = 125,804.48 : x
  2. Step 2: Convert to fraction form
    425,316.02/638,098.77 = 125,804.48/x
  3. Step 3: Cross multiply
    425,316.02x = 638,098.77 × 125,804.48
  4. Step 4: Simplify right side
    425,316.02x = 80,275,683,948.49
  5. Step 5: Solve for x
    x = 80,275,683,948.49/425,316.02
  6. Step 6: Final answer
    x = 188,743.62

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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.