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Finding the Fourth Proportional to 402,808.50, 604,083.76 and 132,876.23

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Solution

The fourth proportional to 402,808.50, 604,083.76 and 132,876.23 is: 199,271.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,808.50 : 604,083.76 = 132,876.23 : x
  2. Step 2: Convert to fraction form
    402,808.50/604,083.76 = 132,876.23/x
  3. Step 3: Cross multiply
    402,808.50x = 604,083.76 × 132,876.23
  4. Step 4: Simplify right side
    402,808.50x = 80,268,369,280.42
  5. Step 5: Solve for x
    x = 80,268,369,280.42/402,808.50
  6. Step 6: Final answer
    x = 199,271.79

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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.