Home / 258,179.42-356,320.95-145,002.17

Finding the Fourth Proportional to 258,179.42, 356,320.95 and 145,002.17

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Solution

The fourth proportional to 258,179.42, 356,320.95 and 145,002.17 is: 200,121.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,179.42 : 356,320.95 = 145,002.17 : x
  2. Step 2: Convert to fraction form
    258,179.42/356,320.95 = 145,002.17/x
  3. Step 3: Cross multiply
    258,179.42x = 356,320.95 × 145,002.17
  4. Step 4: Simplify right side
    258,179.42x = 51,667,310,966.46
  5. Step 5: Solve for x
    x = 51,667,310,966.46/258,179.42
  6. Step 6: Final answer
    x = 200,121.73

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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.