Home / 372,286.90-558,430.44-260,186.05

Finding the Fourth Proportional to 372,286.90, 558,430.44 and 260,186.05

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Solution

The fourth proportional to 372,286.90, 558,430.44 and 260,186.05 is: 390,279.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,286.90 : 558,430.44 = 260,186.05 : x
  2. Step 2: Convert to fraction form
    372,286.90/558,430.44 = 260,186.05/x
  3. Step 3: Cross multiply
    372,286.90x = 558,430.44 × 260,186.05
  4. Step 4: Simplify right side
    372,286.90x = 145,295,810,383.36
  5. Step 5: Solve for x
    x = 145,295,810,383.36/372,286.90
  6. Step 6: Final answer
    x = 390,279.14

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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.