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Finding the Fourth Proportional to 293,948.80, 440,875.99 and 80,666.90

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Solution

The fourth proportional to 293,948.80, 440,875.99 and 80,666.90 is: 120,987.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,948.80 : 440,875.99 = 80,666.90 : x
  2. Step 2: Convert to fraction form
    293,948.80/440,875.99 = 80,666.90/x
  3. Step 3: Cross multiply
    293,948.80x = 440,875.99 × 80,666.90
  4. Step 4: Simplify right side
    293,948.80x = 35,564,099,397.73
  5. Step 5: Solve for x
    x = 35,564,099,397.73/293,948.80
  6. Step 6: Final answer
    x = 120,987.39

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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.