Home / 348,540.30-521,644.05-306,549.90

Finding the Fourth Proportional to 348,540.30, 521,644.05 and 306,549.90

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Solution

The fourth proportional to 348,540.30, 521,644.05 and 306,549.90 is: 458,798.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,540.30 : 521,644.05 = 306,549.90 : x
  2. Step 2: Convert to fraction form
    348,540.30/521,644.05 = 306,549.90/x
  3. Step 3: Cross multiply
    348,540.30x = 521,644.05 × 306,549.90
  4. Step 4: Simplify right side
    348,540.30x = 159,909,931,363.10
  5. Step 5: Solve for x
    x = 159,909,931,363.10/348,540.30
  6. Step 6: Final answer
    x = 458,798.97

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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.