Home / 291,758.18-402,236.34-218,851.16

Finding the Fourth Proportional to 291,758.18, 402,236.34 and 218,851.16

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Solution

The fourth proportional to 291,758.18, 402,236.34 and 218,851.16 is: 301,722.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,758.18 : 402,236.34 = 218,851.16 : x
  2. Step 2: Convert to fraction form
    291,758.18/402,236.34 = 218,851.16/x
  3. Step 3: Cross multiply
    291,758.18x = 402,236.34 × 218,851.16
  4. Step 4: Simplify right side
    291,758.18x = 88,029,887,591.97
  5. Step 5: Solve for x
    x = 88,029,887,591.97/291,758.18
  6. Step 6: Final answer
    x = 301,722.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.