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Finding the Fourth Proportional to 372,901.10, 559,351.65 and 214,999.70

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Solution

The fourth proportional to 372,901.10, 559,351.65 and 214,999.70 is: 322,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,901.10 : 559,351.65 = 214,999.70 : x
  2. Step 2: Convert to fraction form
    372,901.10/559,351.65 = 214,999.70/x
  3. Step 3: Cross multiply
    372,901.10x = 559,351.65 × 214,999.70
  4. Step 4: Simplify right side
    372,901.10x = 120,260,436,944.51
  5. Step 5: Solve for x
    x = 120,260,436,944.51/372,901.10
  6. Step 6: Final answer
    x = 322,499.55

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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.