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Finding the Fourth Proportional to 402,500.40, 603,750.60 and 122,017.56

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Solution

The fourth proportional to 402,500.40, 603,750.60 and 122,017.56 is: 183,026.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,500.40 : 603,750.60 = 122,017.56 : x
  2. Step 2: Convert to fraction form
    402,500.40/603,750.60 = 122,017.56/x
  3. Step 3: Cross multiply
    402,500.40x = 603,750.60 × 122,017.56
  4. Step 4: Simplify right side
    402,500.40x = 73,668,175,060.54
  5. Step 5: Solve for x
    x = 73,668,175,060.54/402,500.40
  6. Step 6: Final answer
    x = 183,026.34

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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.