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Finding the Fourth Proportional to 570.65, 787.05 and 371.52

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Solution

The fourth proportional to 570.65, 787.05 and 371.52 is: 512.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    570.65 : 787.05 = 371.52 : x
  2. Step 2: Convert to fraction form
    570.65/787.05 = 371.52/x
  3. Step 3: Cross multiply
    570.65x = 787.05 × 371.52
  4. Step 4: Simplify right side
    570.65x = 292,404.82
  5. Step 5: Solve for x
    x = 292,404.82/570.65
  6. Step 6: Final answer
    x = 512.41

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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.