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Finding the Fourth Proportional to 356,752.88, 535,211.20 and 120,089.28

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Solution

The fourth proportional to 356,752.88, 535,211.20 and 120,089.28 is: 180,161.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,752.88 : 535,211.20 = 120,089.28 : x
  2. Step 2: Convert to fraction form
    356,752.88/535,211.20 = 120,089.28/x
  3. Step 3: Cross multiply
    356,752.88x = 535,211.20 × 120,089.28
  4. Step 4: Simplify right side
    356,752.88x = 64,273,127,655.94
  5. Step 5: Solve for x
    x = 64,273,127,655.94/356,752.88
  6. Step 6: Final answer
    x = 180,161.48

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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.