Home / 282,649.47-423,988.79-72,289.23

Finding the Fourth Proportional to 282,649.47, 423,988.79 and 72,289.23

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Solution

The fourth proportional to 282,649.47, 423,988.79 and 72,289.23 is: 108,437.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,649.47 : 423,988.79 = 72,289.23 : x
  2. Step 2: Convert to fraction form
    282,649.47/423,988.79 = 72,289.23/x
  3. Step 3: Cross multiply
    282,649.47x = 423,988.79 × 72,289.23
  4. Step 4: Simplify right side
    282,649.47x = 30,649,822,796.29
  5. Step 5: Solve for x
    x = 30,649,822,796.29/282,649.47
  6. Step 6: Final answer
    x = 108,437.57

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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.