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Finding the Fourth Proportional to 402,419.48, 555,327.27 and 227,973.42

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Solution

The fourth proportional to 402,419.48, 555,327.27 and 227,973.42 is: 314,596.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,419.48 : 555,327.27 = 227,973.42 : x
  2. Step 2: Convert to fraction form
    402,419.48/555,327.27 = 227,973.42/x
  3. Step 3: Cross multiply
    402,419.48x = 555,327.27 × 227,973.42
  4. Step 4: Simplify right side
    402,419.48x = 126,599,856,961.16
  5. Step 5: Solve for x
    x = 126,599,856,961.16/402,419.48
  6. Step 6: Final answer
    x = 314,596.75

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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.