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Finding the Fourth Proportional to 341,320.36, 512,209.08 and 141,640.95

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Solution

The fourth proportional to 341,320.36, 512,209.08 and 141,640.95 is: 212,556.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,320.36 : 512,209.08 = 141,640.95 : x
  2. Step 2: Convert to fraction form
    341,320.36/512,209.08 = 141,640.95/x
  3. Step 3: Cross multiply
    341,320.36x = 512,209.08 × 141,640.95
  4. Step 4: Simplify right side
    341,320.36x = 72,549,780,689.83
  5. Step 5: Solve for x
    x = 72,549,780,689.83/341,320.36
  6. Step 6: Final answer
    x = 212,556.26

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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.