Home / 385,117.36-577,689.20-132,395.68

Finding the Fourth Proportional to 385,117.36, 577,689.20 and 132,395.68

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Solution

The fourth proportional to 385,117.36, 577,689.20 and 132,395.68 is: 198,598.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,117.36 : 577,689.20 = 132,395.68 : x
  2. Step 2: Convert to fraction form
    385,117.36/577,689.20 = 132,395.68/x
  3. Step 3: Cross multiply
    385,117.36x = 577,689.20 × 132,395.68
  4. Step 4: Simplify right side
    385,117.36x = 76,483,554,462.66
  5. Step 5: Solve for x
    x = 76,483,554,462.66/385,117.36
  6. Step 6: Final answer
    x = 198,598.04

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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.