Home / 291,320.60-436,982.28-101,780.16

Finding the Fourth Proportional to 291,320.60, 436,982.28 and 101,780.16

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Solution

The fourth proportional to 291,320.60, 436,982.28 and 101,780.16 is: 152,670.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,320.60 : 436,982.28 = 101,780.16 : x
  2. Step 2: Convert to fraction form
    291,320.60/436,982.28 = 101,780.16/x
  3. Step 3: Cross multiply
    291,320.60x = 436,982.28 × 101,780.16
  4. Step 4: Simplify right side
    291,320.60x = 44,476,126,375.56
  5. Step 5: Solve for x
    x = 44,476,126,375.56/291,320.60
  6. Step 6: Final answer
    x = 152,670.72

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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.