Home / 258,191.18-356,337.28-145,013.94

Finding the Fourth Proportional to 258,191.18, 356,337.28 and 145,013.94

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Solution

The fourth proportional to 258,191.18, 356,337.28 and 145,013.94 is: 200,138.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,191.18 : 356,337.28 = 145,013.94 : x
  2. Step 2: Convert to fraction form
    258,191.18/356,337.28 = 145,013.94/x
  3. Step 3: Cross multiply
    258,191.18x = 356,337.28 × 145,013.94
  4. Step 4: Simplify right side
    258,191.18x = 51,673,872,941.68
  5. Step 5: Solve for x
    x = 51,673,872,941.68/258,191.18
  6. Step 6: Final answer
    x = 200,138.03

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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.