Home / 511,342.08-766,961.28-137,316.48

Finding the Fourth Proportional to 511,342.08, 766,961.28 and 137,316.48

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Solution

The fourth proportional to 511,342.08, 766,961.28 and 137,316.48 is: 205,960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,342.08 : 766,961.28 = 137,316.48 : x
  2. Step 2: Convert to fraction form
    511,342.08/766,961.28 = 137,316.48/x
  3. Step 3: Cross multiply
    511,342.08x = 766,961.28 × 137,316.48
  4. Step 4: Simplify right side
    511,342.08x = 105,316,423,265.89
  5. Step 5: Solve for x
    x = 105,316,423,265.89/511,342.08
  6. Step 6: Final answer
    x = 205,960.80

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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.