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Finding the Fourth Proportional to 247,874.71, 342,036.47 and 151,043.27

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Solution

The fourth proportional to 247,874.71, 342,036.47 and 151,043.27 is: 208,421.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,874.71 : 342,036.47 = 151,043.27 : x
  2. Step 2: Convert to fraction form
    247,874.71/342,036.47 = 151,043.27/x
  3. Step 3: Cross multiply
    247,874.71x = 342,036.47 × 151,043.27
  4. Step 4: Simplify right side
    247,874.71x = 51,662,307,479.44
  5. Step 5: Solve for x
    x = 51,662,307,479.44/247,874.71
  6. Step 6: Final answer
    x = 208,421.05

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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.