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Finding the Fourth Proportional to 329,404.08, 494,412.30 and 129,862.20

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Solution

The fourth proportional to 329,404.08, 494,412.30 and 129,862.20 is: 194,914.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,404.08 : 494,412.30 = 129,862.20 : x
  2. Step 2: Convert to fraction form
    329,404.08/494,412.30 = 129,862.20/x
  3. Step 3: Cross multiply
    329,404.08x = 494,412.30 × 129,862.20
  4. Step 4: Simplify right side
    329,404.08x = 64,205,468,985.06
  5. Step 5: Solve for x
    x = 64,205,468,985.06/329,404.08
  6. Step 6: Final answer
    x = 194,914.01

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1.5x scale

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.