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Finding the Fourth Proportional to 379,871.34, 570,001.41 and 155,397.66

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Solution

The fourth proportional to 379,871.34, 570,001.41 and 155,397.66 is: 233,176.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,871.34 : 570,001.41 = 155,397.66 : x
  2. Step 2: Convert to fraction form
    379,871.34/570,001.41 = 155,397.66/x
  3. Step 3: Cross multiply
    379,871.34x = 570,001.41 × 155,397.66
  4. Step 4: Simplify right side
    379,871.34x = 88,576,885,310.70
  5. Step 5: Solve for x
    x = 88,576,885,310.70/379,871.34
  6. Step 6: Final answer
    x = 233,176.02

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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.