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Finding the Fourth Proportional to 440,530.22, 660,472.11 and 140,838.32

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Solution

The fourth proportional to 440,530.22, 660,472.11 and 140,838.32 is: 211,154.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,530.22 : 660,472.11 = 140,838.32 : x
  2. Step 2: Convert to fraction form
    440,530.22/660,472.11 = 140,838.32/x
  3. Step 3: Cross multiply
    440,530.22x = 660,472.11 × 140,838.32
  4. Step 4: Simplify right side
    440,530.22x = 93,019,779,076.89
  5. Step 5: Solve for x
    x = 93,019,779,076.89/440,530.22
  6. Step 6: Final answer
    x = 211,154.14

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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.