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Finding the Fourth Proportional to 922.41, 1,384.16 and 374.55

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Solution

The fourth proportional to 922.41, 1,384.16 and 374.55 is: 562.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    922.41 : 1,384.16 = 374.55 : x
  2. Step 2: Convert to fraction form
    922.41/1,384.16 = 374.55/x
  3. Step 3: Cross multiply
    922.41x = 1,384.16 × 374.55
  4. Step 4: Simplify right side
    922.41x = 518,437.13
  5. Step 5: Solve for x
    x = 518,437.13/922.41
  6. Step 6: Final answer
    x = 562.05

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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.