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Finding the Fourth Proportional to 345,902.33, 518,608.44 and 153,671.18

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Solution

The fourth proportional to 345,902.33, 518,608.44 and 153,671.18 is: 230,397.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,902.33 : 518,608.44 = 153,671.18 : x
  2. Step 2: Convert to fraction form
    345,902.33/518,608.44 = 153,671.18/x
  3. Step 3: Cross multiply
    345,902.33x = 518,608.44 × 153,671.18
  4. Step 4: Simplify right side
    345,902.33x = 79,695,168,339.72
  5. Step 5: Solve for x
    x = 79,695,168,339.72/345,902.33
  6. Step 6: Final answer
    x = 230,397.89

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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.