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Finding the Fourth Proportional to 380,687, 570,936.95 and 167,508.50

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Solution

The fourth proportional to 380,687, 570,936.95 and 167,508.50 is: 251,221.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,687 : 570,936.95 = 167,508.50 : x
  2. Step 2: Convert to fraction form
    380,687/570,936.95 = 167,508.50/x
  3. Step 3: Cross multiply
    380,687x = 570,936.95 × 167,508.50
  4. Step 4: Simplify right side
    380,687x = 95,636,791,251.53
  5. Step 5: Solve for x
    x = 95,636,791,251.53/380,687
  6. Step 6: Final answer
    x = 251,221.58

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1.5x scale

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.