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Finding the Fourth Proportional to 341,864.93, 512,797.77 and 89,145.20

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Solution

The fourth proportional to 341,864.93, 512,797.77 and 89,145.20 is: 133,717.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,864.93 : 512,797.77 = 89,145.20 : x
  2. Step 2: Convert to fraction form
    341,864.93/512,797.77 = 89,145.20/x
  3. Step 3: Cross multiply
    341,864.93x = 512,797.77 × 89,145.20
  4. Step 4: Simplify right side
    341,864.93x = 45,713,461,048.20
  5. Step 5: Solve for x
    x = 45,713,461,048.20/341,864.93
  6. Step 6: Final answer
    x = 133,717.90

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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.