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Finding the Fourth Proportional to 307,626.64, 424,508.48 and 173,482

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Solution

The fourth proportional to 307,626.64, 424,508.48 and 173,482 is: 239,395.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,626.64 : 424,508.48 = 173,482 : x
  2. Step 2: Convert to fraction form
    307,626.64/424,508.48 = 173,482/x
  3. Step 3: Cross multiply
    307,626.64x = 424,508.48 × 173,482
  4. Step 4: Simplify right side
    307,626.64x = 73,644,580,127.36
  5. Step 5: Solve for x
    x = 73,644,580,127.36/307,626.64
  6. Step 6: Final answer
    x = 239,395.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.