Home / 291,283.24-436,948.55-80,921.18

Finding the Fourth Proportional to 291,283.24, 436,948.55 and 80,921.18

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Solution

The fourth proportional to 291,283.24, 436,948.55 and 80,921.18 is: 121,388.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,283.24 : 436,948.55 = 80,921.18 : x
  2. Step 2: Convert to fraction form
    291,283.24/436,948.55 = 80,921.18/x
  3. Step 3: Cross multiply
    291,283.24x = 436,948.55 × 80,921.18
  4. Step 4: Simplify right side
    291,283.24x = 35,358,392,265.29
  5. Step 5: Solve for x
    x = 35,358,392,265.29/291,283.24
  6. Step 6: Final answer
    x = 121,388.35

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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.