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Finding the Fourth Proportional to 354,031.70, 488,569.35 and 192,886.71

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Solution

The fourth proportional to 354,031.70, 488,569.35 and 192,886.71 is: 266,186.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,031.70 : 488,569.35 = 192,886.71 : x
  2. Step 2: Convert to fraction form
    354,031.70/488,569.35 = 192,886.71/x
  3. Step 3: Cross multiply
    354,031.70x = 488,569.35 × 192,886.71
  4. Step 4: Simplify right side
    354,031.70x = 94,238,534,528.34
  5. Step 5: Solve for x
    x = 94,238,534,528.34/354,031.70
  6. Step 6: Final answer
    x = 266,186.72

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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.