Home / 252,218.24-378,409.08-74,728.16

Finding the Fourth Proportional to 252,218.24, 378,409.08 and 74,728.16

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Solution

The fourth proportional to 252,218.24, 378,409.08 and 74,728.16 is: 112,116.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,218.24 : 378,409.08 = 74,728.16 : x
  2. Step 2: Convert to fraction form
    252,218.24/378,409.08 = 74,728.16/x
  3. Step 3: Cross multiply
    252,218.24x = 378,409.08 × 74,728.16
  4. Step 4: Simplify right side
    252,218.24x = 28,277,814,275.69
  5. Step 5: Solve for x
    x = 28,277,814,275.69/252,218.24
  6. Step 6: Final answer
    x = 112,116.45

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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.