Home / 208,985.52-288,384.02-122,947.92

Finding the Fourth Proportional to 208,985.52, 288,384.02 and 122,947.92

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Solution

The fourth proportional to 208,985.52, 288,384.02 and 122,947.92 is: 169,658.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,985.52 : 288,384.02 = 122,947.92 : x
  2. Step 2: Convert to fraction form
    208,985.52/288,384.02 = 122,947.92/x
  3. Step 3: Cross multiply
    208,985.52x = 288,384.02 × 122,947.92
  4. Step 4: Simplify right side
    208,985.52x = 35,456,215,420.24
  5. Step 5: Solve for x
    x = 35,456,215,420.24/208,985.52
  6. Step 6: Final answer
    x = 169,658.72

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1.5x scale

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.