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Finding the Fourth Proportional to 615.73, 922.14 and 322.53

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Solution

The fourth proportional to 615.73, 922.14 and 322.53 is: 483.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.73 : 922.14 = 322.53 : x
  2. Step 2: Convert to fraction form
    615.73/922.14 = 322.53/x
  3. Step 3: Cross multiply
    615.73x = 922.14 × 322.53
  4. Step 4: Simplify right side
    615.73x = 297,417.81
  5. Step 5: Solve for x
    x = 297,417.81/615.73
  6. Step 6: Final answer
    x = 483.03

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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.