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Finding the Fourth Proportional to 340.93, 510.85 and 317.71

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Solution

The fourth proportional to 340.93, 510.85 and 317.71 is: 476.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.93 : 510.85 = 317.71 : x
  2. Step 2: Convert to fraction form
    340.93/510.85 = 317.71/x
  3. Step 3: Cross multiply
    340.93x = 510.85 × 317.71
  4. Step 4: Simplify right side
    340.93x = 162,302.15
  5. Step 5: Solve for x
    x = 162,302.15/340.93
  6. Step 6: Final answer
    x = 476.06

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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.