Home / 388,124.02-581,989.15-177,581.53

Finding the Fourth Proportional to 388,124.02, 581,989.15 and 177,581.53

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Solution

The fourth proportional to 388,124.02, 581,989.15 and 177,581.53 is: 266,282.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,124.02 : 581,989.15 = 177,581.53 : x
  2. Step 2: Convert to fraction form
    388,124.02/581,989.15 = 177,581.53/x
  3. Step 3: Cross multiply
    388,124.02x = 581,989.15 × 177,581.53
  4. Step 4: Simplify right side
    388,124.02x = 103,350,524,649.86
  5. Step 5: Solve for x
    x = 103,350,524,649.86/388,124.02
  6. Step 6: Final answer
    x = 266,282.22

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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.