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Finding the Fourth Proportional to 894.16, 1,341.31 and 346.30

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Solution

The fourth proportional to 894.16, 1,341.31 and 346.30 is: 519.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.16 : 1,341.31 = 346.30 : x
  2. Step 2: Convert to fraction form
    894.16/1,341.31 = 346.30/x
  3. Step 3: Cross multiply
    894.16x = 1,341.31 × 346.30
  4. Step 4: Simplify right side
    894.16x = 464,495.65
  5. Step 5: Solve for x
    x = 464,495.65/894.16
  6. Step 6: Final answer
    x = 519.48

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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.