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Finding the Fourth Proportional to 511,373.41, 766,937.08 and 156,390.51

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Solution

The fourth proportional to 511,373.41, 766,937.08 and 156,390.51 is: 234,548.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,373.41 : 766,937.08 = 156,390.51 : x
  2. Step 2: Convert to fraction form
    511,373.41/766,937.08 = 156,390.51/x
  3. Step 3: Cross multiply
    511,373.41x = 766,937.08 × 156,390.51
  4. Step 4: Simplify right side
    511,373.41x = 119,941,681,079.11
  5. Step 5: Solve for x
    x = 119,941,681,079.11/511,373.41
  6. Step 6: Final answer
    x = 234,548.14

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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.