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Finding the Fourth Proportional to 155.66, 233.51 and 52.92

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Solution

The fourth proportional to 155.66, 233.51 and 52.92 is: 79.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.66 : 233.51 = 52.92 : x
  2. Step 2: Convert to fraction form
    155.66/233.51 = 52.92/x
  3. Step 3: Cross multiply
    155.66x = 233.51 × 52.92
  4. Step 4: Simplify right side
    155.66x = 12,356.77
  5. Step 5: Solve for x
    x = 12,356.77/155.66
  6. Step 6: Final answer
    x = 79.38

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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.