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Finding the Fourth Proportional to 440,363.52, 660,545.28 and 191,040

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Solution

The fourth proportional to 440,363.52, 660,545.28 and 191,040 is: 286,560

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,363.52 : 660,545.28 = 191,040 : x
  2. Step 2: Convert to fraction form
    440,363.52/660,545.28 = 191,040/x
  3. Step 3: Cross multiply
    440,363.52x = 660,545.28 × 191,040
  4. Step 4: Simplify right side
    440,363.52x = 126,190,570,291.20
  5. Step 5: Solve for x
    x = 126,190,570,291.20/440,363.52
  6. Step 6: Final answer
    x = 286,560

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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.