Home / 385,012.32-577,387.20-148,335.36

Finding the Fourth Proportional to 385,012.32, 577,387.20 and 148,335.36

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Solution

The fourth proportional to 385,012.32, 577,387.20 and 148,335.36 is: 222,452.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,012.32 : 577,387.20 = 148,335.36 : x
  2. Step 2: Convert to fraction form
    385,012.32/577,387.20 = 148,335.36/x
  3. Step 3: Cross multiply
    385,012.32x = 577,387.20 × 148,335.36
  4. Step 4: Simplify right side
    385,012.32x = 85,646,938,171.39
  5. Step 5: Solve for x
    x = 85,646,938,171.39/385,012.32
  6. Step 6: Final answer
    x = 222,452.46

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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.