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Finding the Fourth Proportional to 311,565.66, 429,960.08 and 168,325.26

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Solution

The fourth proportional to 311,565.66, 429,960.08 and 168,325.26 is: 232,288.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,565.66 : 429,960.08 = 168,325.26 : x
  2. Step 2: Convert to fraction form
    311,565.66/429,960.08 = 168,325.26/x
  3. Step 3: Cross multiply
    311,565.66x = 429,960.08 × 168,325.26
  4. Step 4: Simplify right side
    311,565.66x = 72,373,142,255.62
  5. Step 5: Solve for x
    x = 72,373,142,255.62/311,565.66
  6. Step 6: Final answer
    x = 232,288.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.