Home / 258,480.28-387,655.60-183,381.40

Finding the Fourth Proportional to 258,480.28, 387,655.60 and 183,381.40

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Solution

The fourth proportional to 258,480.28, 387,655.60 and 183,381.40 is: 275,026.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,480.28 : 387,655.60 = 183,381.40 : x
  2. Step 2: Convert to fraction form
    258,480.28/387,655.60 = 183,381.40/x
  3. Step 3: Cross multiply
    258,480.28x = 387,655.60 × 183,381.40
  4. Step 4: Simplify right side
    258,480.28x = 71,088,826,645.84
  5. Step 5: Solve for x
    x = 71,088,826,645.84/258,480.28
  6. Step 6: Final answer
    x = 275,026.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.