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Finding the Fourth Proportional to 353,155.36, 487,031.52 and 262,737.76

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Solution

The fourth proportional to 353,155.36, 487,031.52 and 262,737.76 is: 362,337.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,155.36 : 487,031.52 = 262,737.76 : x
  2. Step 2: Convert to fraction form
    353,155.36/487,031.52 = 262,737.76/x
  3. Step 3: Cross multiply
    353,155.36x = 487,031.52 × 262,737.76
  4. Step 4: Simplify right side
    353,155.36x = 127,961,570,614.20
  5. Step 5: Solve for x
    x = 127,961,570,614.20/353,155.36
  6. Step 6: Final answer
    x = 362,337.90

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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.