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Finding the Fourth Proportional to 511,443.92, 767,138.04 and 156,457.94

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Solution

The fourth proportional to 511,443.92, 767,138.04 and 156,457.94 is: 234,678.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,443.92 : 767,138.04 = 156,457.94 : x
  2. Step 2: Convert to fraction form
    511,443.92/767,138.04 = 156,457.94/x
  3. Step 3: Cross multiply
    511,443.92x = 767,138.04 × 156,457.94
  4. Step 4: Simplify right side
    511,443.92x = 120,024,833,598.35
  5. Step 5: Solve for x
    x = 120,024,833,598.35/511,443.92
  6. Step 6: Final answer
    x = 234,678.39

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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.