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Finding the Fourth Proportional to 203,140.20, 304,127.10 and 124,408.20

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Solution

The fourth proportional to 203,140.20, 304,127.10 and 124,408.20 is: 186,255.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,140.20 : 304,127.10 = 124,408.20 : x
  2. Step 2: Convert to fraction form
    203,140.20/304,127.10 = 124,408.20/x
  3. Step 3: Cross multiply
    203,140.20x = 304,127.10 × 124,408.20
  4. Step 4: Simplify right side
    203,140.20x = 37,835,905,082.22
  5. Step 5: Solve for x
    x = 37,835,905,082.22/203,140.20
  6. Step 6: Final answer
    x = 186,255.13

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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.