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Finding the Fourth Proportional to 286,011.50, 429,130.24 and 108,565.60

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Solution

The fourth proportional to 286,011.50, 429,130.24 and 108,565.60 is: 162,891.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,011.50 : 429,130.24 = 108,565.60 : x
  2. Step 2: Convert to fraction form
    286,011.50/429,130.24 = 108,565.60/x
  3. Step 3: Cross multiply
    286,011.50x = 429,130.24 × 108,565.60
  4. Step 4: Simplify right side
    286,011.50x = 46,588,781,983.74
  5. Step 5: Solve for x
    x = 46,588,781,983.74/286,011.50
  6. Step 6: Final answer
    x = 162,891.29

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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.