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Finding the Fourth Proportional to 630,162.80, 945,239.34 and 156,844.97

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Solution

The fourth proportional to 630,162.80, 945,239.34 and 156,844.97 is: 235,266.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,162.80 : 945,239.34 = 156,844.97 : x
  2. Step 2: Convert to fraction form
    630,162.80/945,239.34 = 156,844.97/x
  3. Step 3: Cross multiply
    630,162.80x = 945,239.34 × 156,844.97
  4. Step 4: Simplify right side
    630,162.80x = 148,256,038,680.33
  5. Step 5: Solve for x
    x = 148,256,038,680.33/630,162.80
  6. Step 6: Final answer
    x = 235,266.25

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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.