Home / 253,632.17-380,455.25-76,139.24

Finding the Fourth Proportional to 253,632.17, 380,455.25 and 76,139.24

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Solution

The fourth proportional to 253,632.17, 380,455.25 and 76,139.24 is: 114,210.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,632.17 : 380,455.25 = 76,139.24 : x
  2. Step 2: Convert to fraction form
    253,632.17/380,455.25 = 76,139.24/x
  3. Step 3: Cross multiply
    253,632.17x = 380,455.25 × 76,139.24
  4. Step 4: Simplify right side
    253,632.17x = 28,967,571,306.04
  5. Step 5: Solve for x
    x = 28,967,571,306.04/253,632.17
  6. Step 6: Final answer
    x = 114,210.95

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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.