Home / 385,045.20-577,523.61-100,763.28

Finding the Fourth Proportional to 385,045.20, 577,523.61 and 100,763.28

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Solution

The fourth proportional to 385,045.20, 577,523.61 and 100,763.28 is: 151,133.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,045.20 : 577,523.61 = 100,763.28 : x
  2. Step 2: Convert to fraction form
    385,045.20/577,523.61 = 100,763.28/x
  3. Step 3: Cross multiply
    385,045.20x = 577,523.61 × 100,763.28
  4. Step 4: Simplify right side
    385,045.20x = 58,193,173,221.04
  5. Step 5: Solve for x
    x = 58,193,173,221.04/385,045.20
  6. Step 6: Final answer
    x = 151,133.36

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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.