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Finding the Fourth Proportional to 581.30, 870.47 and 375.59

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Solution

The fourth proportional to 581.30, 870.47 and 375.59 is: 562.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.30 : 870.47 = 375.59 : x
  2. Step 2: Convert to fraction form
    581.30/870.47 = 375.59/x
  3. Step 3: Cross multiply
    581.30x = 870.47 × 375.59
  4. Step 4: Simplify right side
    581.30x = 326,937.69
  5. Step 5: Solve for x
    x = 326,937.69/581.30
  6. Step 6: Final answer
    x = 562.42

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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.