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Finding the Fourth Proportional to 1,102.44, 1,653.50 and 322.40

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Solution

The fourth proportional to 1,102.44, 1,653.50 and 322.40 is: 483.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102.44 : 1,653.50 = 322.40 : x
  2. Step 2: Convert to fraction form
    1,102.44/1,653.50 = 322.40/x
  3. Step 3: Cross multiply
    1,102.44x = 1,653.50 × 322.40
  4. Step 4: Simplify right side
    1,102.44x = 533,088.40
  5. Step 5: Solve for x
    x = 533,088.40/1,102.44
  6. Step 6: Final answer
    x = 483.55

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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.