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Finding the Fourth Proportional to 478,849.78, 718,274.67 and 163,309.42

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Solution

The fourth proportional to 478,849.78, 718,274.67 and 163,309.42 is: 244,964.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,849.78 : 718,274.67 = 163,309.42 : x
  2. Step 2: Convert to fraction form
    478,849.78/718,274.67 = 163,309.42/x
  3. Step 3: Cross multiply
    478,849.78x = 718,274.67 × 163,309.42
  4. Step 4: Simplify right side
    478,849.78x = 117,301,019,758.39
  5. Step 5: Solve for x
    x = 117,301,019,758.39/478,849.78
  6. Step 6: Final answer
    x = 244,964.13

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Similar ratio
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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.