Home / 385,585.43-578,433.50-132,798.30

Finding the Fourth Proportional to 385,585.43, 578,433.50 and 132,798.30

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Solution

The fourth proportional to 385,585.43, 578,433.50 and 132,798.30 is: 199,216.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,585.43 : 578,433.50 = 132,798.30 : x
  2. Step 2: Convert to fraction form
    385,585.43/578,433.50 = 132,798.30/x
  3. Step 3: Cross multiply
    385,585.43x = 578,433.50 × 132,798.30
  4. Step 4: Simplify right side
    385,585.43x = 76,814,983,127.93
  5. Step 5: Solve for x
    x = 76,814,983,127.93/385,585.43
  6. Step 6: Final answer
    x = 199,216.51

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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.