Home / 385,249.30-577,935.51-118,947.22

Finding the Fourth Proportional to 385,249.30, 577,935.51 and 118,947.22

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Solution

The fourth proportional to 385,249.30, 577,935.51 and 118,947.22 is: 178,439.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,249.30 : 577,935.51 = 118,947.22 : x
  2. Step 2: Convert to fraction form
    385,249.30/577,935.51 = 118,947.22/x
  3. Step 3: Cross multiply
    385,249.30x = 577,935.51 × 118,947.22
  4. Step 4: Simplify right side
    385,249.30x = 68,743,822,253.78
  5. Step 5: Solve for x
    x = 68,743,822,253.78/385,249.30
  6. Step 6: Final answer
    x = 178,439.84

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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.