Home / 211,002.40-291,319.20-188,302.48

Finding the Fourth Proportional to 211,002.40, 291,319.20 and 188,302.48

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Solution

The fourth proportional to 211,002.40, 291,319.20 and 188,302.48 is: 259,978.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,002.40 : 291,319.20 = 188,302.48 : x
  2. Step 2: Convert to fraction form
    211,002.40/291,319.20 = 188,302.48/x
  3. Step 3: Cross multiply
    211,002.40x = 291,319.20 × 188,302.48
  4. Step 4: Simplify right side
    211,002.40x = 54,856,127,831.62
  5. Step 5: Solve for x
    x = 54,856,127,831.62/211,002.40
  6. Step 6: Final answer
    x = 259,978.69

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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.