Home / 328,956.08-493,432.86-129,136.64

Finding the Fourth Proportional to 328,956.08, 493,432.86 and 129,136.64

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Solution

The fourth proportional to 328,956.08, 493,432.86 and 129,136.64 is: 193,704.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,956.08 : 493,432.86 = 129,136.64 : x
  2. Step 2: Convert to fraction form
    328,956.08/493,432.86 = 129,136.64/x
  3. Step 3: Cross multiply
    328,956.08x = 493,432.86 × 129,136.64
  4. Step 4: Simplify right side
    328,956.08x = 63,720,261,605.99
  5. Step 5: Solve for x
    x = 63,720,261,605.99/328,956.08
  6. Step 6: Final answer
    x = 193,704.47

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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.