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Finding the Fourth Proportional to 388,685.22, 583,077.05 and 151,997.14

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Solution

The fourth proportional to 388,685.22, 583,077.05 and 151,997.14 is: 228,014.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,685.22 : 583,077.05 = 151,997.14 : x
  2. Step 2: Convert to fraction form
    388,685.22/583,077.05 = 151,997.14/x
  3. Step 3: Cross multiply
    388,685.22x = 583,077.05 × 151,997.14
  4. Step 4: Simplify right side
    388,685.22x = 88,626,044,538.49
  5. Step 5: Solve for x
    x = 88,626,044,538.49/388,685.22
  6. Step 6: Final answer
    x = 228,014.96

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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.