Home / 291,284.06-436,931.56-80,927.47

Finding the Fourth Proportional to 291,284.06, 436,931.56 and 80,927.47

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Solution

The fourth proportional to 291,284.06, 436,931.56 and 80,927.47 is: 121,392.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,284.06 : 436,931.56 = 80,927.47 : x
  2. Step 2: Convert to fraction form
    291,284.06/436,931.56 = 80,927.47/x
  3. Step 3: Cross multiply
    291,284.06x = 436,931.56 × 80,927.47
  4. Step 4: Simplify right side
    291,284.06x = 35,359,765,713.95
  5. Step 5: Solve for x
    x = 35,359,765,713.95/291,284.06
  6. Step 6: Final answer
    x = 121,392.72

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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.