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Finding the Fourth Proportional to 240,999.40, 361,434.30 and 72,519.40

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Solution

The fourth proportional to 240,999.40, 361,434.30 and 72,519.40 is: 108,759.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,999.40 : 361,434.30 = 72,519.40 : x
  2. Step 2: Convert to fraction form
    240,999.40/361,434.30 = 72,519.40/x
  3. Step 3: Cross multiply
    240,999.40x = 361,434.30 × 72,519.40
  4. Step 4: Simplify right side
    240,999.40x = 26,210,998,575.42
  5. Step 5: Solve for x
    x = 26,210,998,575.42/240,999.40
  6. Step 6: Final answer
    x = 108,759.60

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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.