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Finding the Fourth Proportional to 440,543.20, 660,491.54 and 140,851.30

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Solution

The fourth proportional to 440,543.20, 660,491.54 and 140,851.30 is: 211,173.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,543.20 : 660,491.54 = 140,851.30 : x
  2. Step 2: Convert to fraction form
    440,543.20/660,491.54 = 140,851.30/x
  3. Step 3: Cross multiply
    440,543.20x = 660,491.54 × 140,851.30
  4. Step 4: Simplify right side
    440,543.20x = 93,031,092,048.00
  5. Step 5: Solve for x
    x = 93,031,092,048.00/440,543.20
  6. Step 6: Final answer
    x = 211,173.60

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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.