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Finding the Fourth Proportional to 366,257.40, 549,450.90 and 129,737.40

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Solution

The fourth proportional to 366,257.40, 549,450.90 and 129,737.40 is: 194,629.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,257.40 : 549,450.90 = 129,737.40 : x
  2. Step 2: Convert to fraction form
    366,257.40/549,450.90 = 129,737.40/x
  3. Step 3: Cross multiply
    366,257.40x = 549,450.90 × 129,737.40
  4. Step 4: Simplify right side
    366,257.40x = 71,284,331,193.66
  5. Step 5: Solve for x
    x = 71,284,331,193.66/366,257.40
  6. Step 6: Final answer
    x = 194,629.05

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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.