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Finding the Fourth Proportional to 401,573.43, 602,380.11 and 131,728.77

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Solution

The fourth proportional to 401,573.43, 602,380.11 and 131,728.77 is: 197,599.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,573.43 : 602,380.11 = 131,728.77 : x
  2. Step 2: Convert to fraction form
    401,573.43/602,380.11 = 131,728.77/x
  3. Step 3: Cross multiply
    401,573.43x = 602,380.11 × 131,728.77
  4. Step 4: Simplify right side
    401,573.43x = 79,350,790,962.76
  5. Step 5: Solve for x
    x = 79,350,790,962.76/401,573.43
  6. Step 6: Final answer
    x = 197,599.70

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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.