Home / 450,869.28-676,407.60-135,332.16

Finding the Fourth Proportional to 450,869.28, 676,407.60 and 135,332.16

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Solution

The fourth proportional to 450,869.28, 676,407.60 and 135,332.16 is: 203,029.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,869.28 : 676,407.60 = 135,332.16 : x
  2. Step 2: Convert to fraction form
    450,869.28/676,407.60 = 135,332.16/x
  3. Step 3: Cross multiply
    450,869.28x = 676,407.60 × 135,332.16
  4. Step 4: Simplify right side
    450,869.28x = 91,539,701,548.42
  5. Step 5: Solve for x
    x = 91,539,701,548.42/450,869.28
  6. Step 6: Final answer
    x = 203,029.36

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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.