Home / 372,221.10-558,331.65-105,990.30

Finding the Fourth Proportional to 372,221.10, 558,331.65 and 105,990.30

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Solution

The fourth proportional to 372,221.10, 558,331.65 and 105,990.30 is: 158,985.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,221.10 : 558,331.65 = 105,990.30 : x
  2. Step 2: Convert to fraction form
    372,221.10/558,331.65 = 105,990.30/x
  3. Step 3: Cross multiply
    372,221.10x = 558,331.65 × 105,990.30
  4. Step 4: Simplify right side
    372,221.10x = 59,177,739,083.00
  5. Step 5: Solve for x
    x = 59,177,739,083.00/372,221.10
  6. Step 6: Final answer
    x = 158,985.45

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Similar ratio
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1.5x scale

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.