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Finding the Fourth Proportional to 833.63, 1,250.15 and 346.42

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Solution

The fourth proportional to 833.63, 1,250.15 and 346.42 is: 519.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.63 : 1,250.15 = 346.42 : x
  2. Step 2: Convert to fraction form
    833.63/1,250.15 = 346.42/x
  3. Step 3: Cross multiply
    833.63x = 1,250.15 × 346.42
  4. Step 4: Simplify right side
    833.63x = 433,072.11
  5. Step 5: Solve for x
    x = 433,072.11/833.63
  6. Step 6: Final answer
    x = 519.50

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Double scale
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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.