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Finding the Fourth Proportional to 284,814.40, 427,567.20 and 158,555.20

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Solution

The fourth proportional to 284,814.40, 427,567.20 and 158,555.20 is: 238,025.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,814.40 : 427,567.20 = 158,555.20 : x
  2. Step 2: Convert to fraction form
    284,814.40/427,567.20 = 158,555.20/x
  3. Step 3: Cross multiply
    284,814.40x = 427,567.20 × 158,555.20
  4. Step 4: Simplify right side
    284,814.40x = 67,793,002,909.44
  5. Step 5: Solve for x
    x = 67,793,002,909.44/284,814.40
  6. Step 6: Final answer
    x = 238,025.19

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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.