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Finding the Fourth Proportional to 425,033.33, 637,480.80 and 172,303.61

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Solution

The fourth proportional to 425,033.33, 637,480.80 and 172,303.61 is: 258,427.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,033.33 : 637,480.80 = 172,303.61 : x
  2. Step 2: Convert to fraction form
    425,033.33/637,480.80 = 172,303.61/x
  3. Step 3: Cross multiply
    425,033.33x = 637,480.80 × 172,303.61
  4. Step 4: Simplify right side
    425,033.33x = 109,840,239,958.28
  5. Step 5: Solve for x
    x = 109,840,239,958.28/425,033.33
  6. Step 6: Final answer
    x = 258,427.36

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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.