Home / 258,882.30-357,256.85-145,705.05

Finding the Fourth Proportional to 258,882.30, 357,256.85 and 145,705.05

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Solution

The fourth proportional to 258,882.30, 357,256.85 and 145,705.05 is: 201,072.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,882.30 : 357,256.85 = 145,705.05 : x
  2. Step 2: Convert to fraction form
    258,882.30/357,256.85 = 145,705.05/x
  3. Step 3: Cross multiply
    258,882.30x = 357,256.85 × 145,705.05
  4. Step 4: Simplify right side
    258,882.30x = 52,054,126,463.57
  5. Step 5: Solve for x
    x = 52,054,126,463.57/258,882.30
  6. Step 6: Final answer
    x = 201,072.56

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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.