Home / 399,711.02-551,632.66-227,636.26

Finding the Fourth Proportional to 399,711.02, 551,632.66 and 227,636.26

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Solution

The fourth proportional to 399,711.02, 551,632.66 and 227,636.26 is: 314,155.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,711.02 : 551,632.66 = 227,636.26 : x
  2. Step 2: Convert to fraction form
    399,711.02/551,632.66 = 227,636.26/x
  3. Step 3: Cross multiply
    399,711.02x = 551,632.66 × 227,636.26
  4. Step 4: Simplify right side
    399,711.02x = 125,571,595,616.25
  5. Step 5: Solve for x
    x = 125,571,595,616.25/399,711.02
  6. Step 6: Final answer
    x = 314,155.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.