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Finding the Fourth Proportional to 248,345.28, 342,706.32 and 140,913.02

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Solution

The fourth proportional to 248,345.28, 342,706.32 and 140,913.02 is: 194,454.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,345.28 : 342,706.32 = 140,913.02 : x
  2. Step 2: Convert to fraction form
    248,345.28/342,706.32 = 140,913.02/x
  3. Step 3: Cross multiply
    248,345.28x = 342,706.32 × 140,913.02
  4. Step 4: Simplify right side
    248,345.28x = 48,291,782,524.29
  5. Step 5: Solve for x
    x = 48,291,782,524.29/248,345.28
  6. Step 6: Final answer
    x = 194,454.20

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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.