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Finding the Fourth Proportional to 284,492.80, 426,350.40 and 189,452.80

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Solution

The fourth proportional to 284,492.80, 426,350.40 and 189,452.80 is: 283,920.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,492.80 : 426,350.40 = 189,452.80 : x
  2. Step 2: Convert to fraction form
    284,492.80/426,350.40 = 189,452.80/x
  3. Step 3: Cross multiply
    284,492.80x = 426,350.40 × 189,452.80
  4. Step 4: Simplify right side
    284,492.80x = 80,773,277,061.12
  5. Step 5: Solve for x
    x = 80,773,277,061.12/284,492.80
  6. Step 6: Final answer
    x = 283,920.29

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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.