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Finding the Fourth Proportional to 388,753.07, 583,192.10 and 136,027.91

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Solution

The fourth proportional to 388,753.07, 583,192.10 and 136,027.91 is: 204,063.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,753.07 : 583,192.10 = 136,027.91 : x
  2. Step 2: Convert to fraction form
    388,753.07/583,192.10 = 136,027.91/x
  3. Step 3: Cross multiply
    388,753.07x = 583,192.10 × 136,027.91
  4. Step 4: Simplify right side
    388,753.07x = 79,330,401,009.11
  5. Step 5: Solve for x
    x = 79,330,401,009.11/388,753.07
  6. Step 6: Final answer
    x = 204,063.73

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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.