Home / 380,789.13-525,546.90-243,027.50

Finding the Fourth Proportional to 380,789.13, 525,546.90 and 243,027.50

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Solution

The fourth proportional to 380,789.13, 525,546.90 and 243,027.50 is: 335,414.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,789.13 : 525,546.90 = 243,027.50 : x
  2. Step 2: Convert to fraction form
    380,789.13/525,546.90 = 243,027.50/x
  3. Step 3: Cross multiply
    380,789.13x = 525,546.90 × 243,027.50
  4. Step 4: Simplify right side
    380,789.13x = 127,722,349,239.75
  5. Step 5: Solve for x
    x = 127,722,349,239.75/380,789.13
  6. Step 6: Final answer
    x = 335,414.90

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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.