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Finding the Fourth Proportional to 152,442.70, 228,664.05 and 143,889.10

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Solution

The fourth proportional to 152,442.70, 228,664.05 and 143,889.10 is: 215,833.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,442.70 : 228,664.05 = 143,889.10 : x
  2. Step 2: Convert to fraction form
    152,442.70/228,664.05 = 143,889.10/x
  3. Step 3: Cross multiply
    152,442.70x = 228,664.05 × 143,889.10
  4. Step 4: Simplify right side
    152,442.70x = 32,902,264,356.86
  5. Step 5: Solve for x
    x = 32,902,264,356.86/152,442.70
  6. Step 6: Final answer
    x = 215,833.65

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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.