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Finding the Fourth Proportional to 203,208.45, 304,812.68 and 123,492.30

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Solution

The fourth proportional to 203,208.45, 304,812.68 and 123,492.30 is: 185,238.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,208.45 : 304,812.68 = 123,492.30 : x
  2. Step 2: Convert to fraction form
    203,208.45/304,812.68 = 123,492.30/x
  3. Step 3: Cross multiply
    203,208.45x = 304,812.68 × 123,492.30
  4. Step 4: Simplify right side
    203,208.45x = 37,642,018,304.90
  5. Step 5: Solve for x
    x = 37,642,018,304.90/203,208.45
  6. Step 6: Final answer
    x = 185,238.45

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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.