Home / 291,282.06-436,928.56-80,925.47

Finding the Fourth Proportional to 291,282.06, 436,928.56 and 80,925.47

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Solution

The fourth proportional to 291,282.06, 436,928.56 and 80,925.47 is: 121,389.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,282.06 : 436,928.56 = 80,925.47 : x
  2. Step 2: Convert to fraction form
    291,282.06/436,928.56 = 80,925.47/x
  3. Step 3: Cross multiply
    291,282.06x = 436,928.56 × 80,925.47
  4. Step 4: Simplify right side
    291,282.06x = 35,358,649,074.42
  5. Step 5: Solve for x
    x = 35,358,649,074.42/291,282.06
  6. Step 6: Final answer
    x = 121,389.72

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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.