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Finding the Fourth Proportional to 440,461.36, 660,790.50 and 140,959.90

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Solution

The fourth proportional to 440,461.36, 660,790.50 and 140,959.90 is: 211,471.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,461.36 : 660,790.50 = 140,959.90 : x
  2. Step 2: Convert to fraction form
    440,461.36/660,790.50 = 140,959.90/x
  3. Step 3: Cross multiply
    440,461.36x = 660,790.50 × 140,959.90
  4. Step 4: Simplify right side
    440,461.36x = 93,144,962,800.95
  5. Step 5: Solve for x
    x = 93,144,962,800.95/440,461.36
  6. Step 6: Final answer
    x = 211,471.36

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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.