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Finding the Fourth Proportional to 349,376.40, 482,156.52 and 196,462.72

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Solution

The fourth proportional to 349,376.40, 482,156.52 and 196,462.72 is: 271,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,376.40 : 482,156.52 = 196,462.72 : x
  2. Step 2: Convert to fraction form
    349,376.40/482,156.52 = 196,462.72/x
  3. Step 3: Cross multiply
    349,376.40x = 482,156.52 × 196,462.72
  4. Step 4: Simplify right side
    349,376.40x = 94,725,781,384.93
  5. Step 5: Solve for x
    x = 94,725,781,384.93/349,376.40
  6. Step 6: Final answer
    x = 271,128.16

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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.