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Finding the Fourth Proportional to 199,425.40, 299,138.10 and 73,065.40

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Solution

The fourth proportional to 199,425.40, 299,138.10 and 73,065.40 is: 109,598.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,425.40 : 299,138.10 = 73,065.40 : x
  2. Step 2: Convert to fraction form
    199,425.40/299,138.10 = 73,065.40/x
  3. Step 3: Cross multiply
    199,425.40x = 299,138.10 × 73,065.40
  4. Step 4: Simplify right side
    199,425.40x = 21,856,644,931.74
  5. Step 5: Solve for x
    x = 21,856,644,931.74/199,425.40
  6. Step 6: Final answer
    x = 109,598.10

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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.