Home / 487,087.50-672,151.78-269,283.12

Finding the Fourth Proportional to 487,087.50, 672,151.78 and 269,283.12

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Solution

The fourth proportional to 487,087.50, 672,151.78 and 269,283.12 is: 371,594.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,087.50 : 672,151.78 = 269,283.12 : x
  2. Step 2: Convert to fraction form
    487,087.50/672,151.78 = 269,283.12/x
  3. Step 3: Cross multiply
    487,087.50x = 672,151.78 × 269,283.12
  4. Step 4: Simplify right side
    487,087.50x = 180,999,128,431.95
  5. Step 5: Solve for x
    x = 180,999,128,431.95/487,087.50
  6. Step 6: Final answer
    x = 371,594.69

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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.