Home / 218,490.02-301,521.96-123,000.20

Finding the Fourth Proportional to 218,490.02, 301,521.96 and 123,000.20

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Solution

The fourth proportional to 218,490.02, 301,521.96 and 123,000.20 is: 169,743.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,490.02 : 301,521.96 = 123,000.20 : x
  2. Step 2: Convert to fraction form
    218,490.02/301,521.96 = 123,000.20/x
  3. Step 3: Cross multiply
    218,490.02x = 301,521.96 × 123,000.20
  4. Step 4: Simplify right side
    218,490.02x = 37,087,261,384.39
  5. Step 5: Solve for x
    x = 37,087,261,384.39/218,490.02
  6. Step 6: Final answer
    x = 169,743.50

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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.