Home / 258,002.68-356,047.19-143,288.72

Finding the Fourth Proportional to 258,002.68, 356,047.19 and 143,288.72

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Solution

The fourth proportional to 258,002.68, 356,047.19 and 143,288.72 is: 197,740.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,002.68 : 356,047.19 = 143,288.72 : x
  2. Step 2: Convert to fraction form
    258,002.68/356,047.19 = 143,288.72/x
  3. Step 3: Cross multiply
    258,002.68x = 356,047.19 × 143,288.72
  4. Step 4: Simplify right side
    258,002.68x = 51,017,547,363.04
  5. Step 5: Solve for x
    x = 51,017,547,363.04/258,002.68
  6. Step 6: Final answer
    x = 197,740.38

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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.