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Finding the Fourth Proportional to 145,199, 217,594.20 and 115,484.96

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Solution

The fourth proportional to 145,199, 217,594.20 and 115,484.96 is: 173,064.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,199 : 217,594.20 = 115,484.96 : x
  2. Step 2: Convert to fraction form
    145,199/217,594.20 = 115,484.96/x
  3. Step 3: Cross multiply
    145,199x = 217,594.20 × 115,484.96
  4. Step 4: Simplify right side
    145,199x = 25,128,857,483.23
  5. Step 5: Solve for x
    x = 25,128,857,483.23/145,199
  6. Step 6: Final answer
    x = 173,064.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.