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Finding the Fourth Proportional to 402,242.74, 555,098.55 and 220,958.35

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Solution

The fourth proportional to 402,242.74, 555,098.55 and 220,958.35 is: 304,924.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,242.74 : 555,098.55 = 220,958.35 : x
  2. Step 2: Convert to fraction form
    402,242.74/555,098.55 = 220,958.35/x
  3. Step 3: Cross multiply
    402,242.74x = 555,098.55 × 220,958.35
  4. Step 4: Simplify right side
    402,242.74x = 122,653,659,695.39
  5. Step 5: Solve for x
    x = 122,653,659,695.39/402,242.74
  6. Step 6: Final answer
    x = 304,924.48

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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.