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Finding the Fourth Proportional to 402,173.96, 554,865.04 and 227,720.37

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Solution

The fourth proportional to 402,173.96, 554,865.04 and 227,720.37 is: 314,177.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,173.96 : 554,865.04 = 227,720.37 : x
  2. Step 2: Convert to fraction form
    402,173.96/554,865.04 = 227,720.37/x
  3. Step 3: Cross multiply
    402,173.96x = 554,865.04 × 227,720.37
  4. Step 4: Simplify right side
    402,173.96x = 126,354,070,029.89
  5. Step 5: Solve for x
    x = 126,354,070,029.89/402,173.96
  6. Step 6: Final answer
    x = 314,177.65

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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.