Home / 258,425.29-356,595.89-143,675.12

Finding the Fourth Proportional to 258,425.29, 356,595.89 and 143,675.12

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Solution

The fourth proportional to 258,425.29, 356,595.89 and 143,675.12 is: 198,254.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,425.29 : 356,595.89 = 143,675.12 : x
  2. Step 2: Convert to fraction form
    258,425.29/356,595.89 = 143,675.12/x
  3. Step 3: Cross multiply
    258,425.29x = 356,595.89 × 143,675.12
  4. Step 4: Simplify right side
    258,425.29x = 51,233,956,666.78
  5. Step 5: Solve for x
    x = 51,233,956,666.78/258,425.29
  6. Step 6: Final answer
    x = 198,254.43

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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.