Home / 389,895.20-538,535.22-282,294.80

Finding the Fourth Proportional to 389,895.20, 538,535.22 and 282,294.80

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Solution

The fourth proportional to 389,895.20, 538,535.22 and 282,294.80 is: 389,914.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,895.20 : 538,535.22 = 282,294.80 : x
  2. Step 2: Convert to fraction form
    389,895.20/538,535.22 = 282,294.80/x
  3. Step 3: Cross multiply
    389,895.20x = 538,535.22 × 282,294.80
  4. Step 4: Simplify right side
    389,895.20x = 152,025,692,222.86
  5. Step 5: Solve for x
    x = 152,025,692,222.86/389,895.20
  6. Step 6: Final answer
    x = 389,914.24

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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.