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Finding the Fourth Proportional to 342,663.52, 473,023.92 and 257,801.44

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Solution

The fourth proportional to 342,663.52, 473,023.92 and 257,801.44 is: 355,877.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,663.52 : 473,023.92 = 257,801.44 : x
  2. Step 2: Convert to fraction form
    342,663.52/473,023.92 = 257,801.44/x
  3. Step 3: Cross multiply
    342,663.52x = 473,023.92 × 257,801.44
  4. Step 4: Simplify right side
    342,663.52x = 121,946,247,730.45
  5. Step 5: Solve for x
    x = 121,946,247,730.45/342,663.52
  6. Step 6: Final answer
    x = 355,877.53

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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.