Home / 254,755.17-382,236.50-128,431.82

Finding the Fourth Proportional to 254,755.17, 382,236.50 and 128,431.82

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Solution

The fourth proportional to 254,755.17, 382,236.50 and 128,431.82 is: 192,700.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,755.17 : 382,236.50 = 128,431.82 : x
  2. Step 2: Convert to fraction form
    254,755.17/382,236.50 = 128,431.82/x
  3. Step 3: Cross multiply
    254,755.17x = 382,236.50 × 128,431.82
  4. Step 4: Simplify right side
    254,755.17x = 49,091,330,642.10
  5. Step 5: Solve for x
    x = 49,091,330,642.10/254,755.17
  6. Step 6: Final answer
    x = 192,700.04

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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.