Home / 511,669.02-767,505.39-156,681.60

Finding the Fourth Proportional to 511,669.02, 767,505.39 and 156,681.60

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Solution

The fourth proportional to 511,669.02, 767,505.39 and 156,681.60 is: 235,022.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,669.02 : 767,505.39 = 156,681.60 : x
  2. Step 2: Convert to fraction form
    511,669.02/767,505.39 = 156,681.60/x
  3. Step 3: Cross multiply
    511,669.02x = 767,505.39 × 156,681.60
  4. Step 4: Simplify right side
    511,669.02x = 120,253,972,513.82
  5. Step 5: Solve for x
    x = 120,253,972,513.82/511,669.02
  6. Step 6: Final answer
    x = 235,022.97

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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.