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Finding the Fourth Proportional to 440,307.72, 660,323.28 and 187,585.56

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Solution

The fourth proportional to 440,307.72, 660,323.28 and 187,585.56 is: 281,319.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,307.72 : 660,323.28 = 187,585.56 : x
  2. Step 2: Convert to fraction form
    440,307.72/660,323.28 = 187,585.56/x
  3. Step 3: Cross multiply
    440,307.72x = 660,323.28 × 187,585.56
  4. Step 4: Simplify right side
    440,307.72x = 123,867,112,259.84
  5. Step 5: Solve for x
    x = 123,867,112,259.84/440,307.72
  6. Step 6: Final answer
    x = 281,319.42

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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.