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Finding the Fourth Proportional to 566.04, 781.06 and 317.30

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Solution

The fourth proportional to 566.04, 781.06 and 317.30 is: 437.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    566.04 : 781.06 = 317.30 : x
  2. Step 2: Convert to fraction form
    566.04/781.06 = 317.30/x
  3. Step 3: Cross multiply
    566.04x = 781.06 × 317.30
  4. Step 4: Simplify right side
    566.04x = 247,830.34
  5. Step 5: Solve for x
    x = 247,830.34/566.04
  6. Step 6: Final answer
    x = 437.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.