Home / 258,482.28-356,737.68-145,305.12

Finding the Fourth Proportional to 258,482.28, 356,737.68 and 145,305.12

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Solution

The fourth proportional to 258,482.28, 356,737.68 and 145,305.12 is: 200,539.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,482.28 : 356,737.68 = 145,305.12 : x
  2. Step 2: Convert to fraction form
    258,482.28/356,737.68 = 145,305.12/x
  3. Step 3: Cross multiply
    258,482.28x = 356,737.68 × 145,305.12
  4. Step 4: Simplify right side
    258,482.28x = 51,835,811,400.92
  5. Step 5: Solve for x
    x = 51,835,811,400.92/258,482.28
  6. Step 6: Final answer
    x = 200,539.13

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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.