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Finding the Fourth Proportional to 480.04, 661.96 and 322.50

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Solution

The fourth proportional to 480.04, 661.96 and 322.50 is: 444.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.04 : 661.96 = 322.50 : x
  2. Step 2: Convert to fraction form
    480.04/661.96 = 322.50/x
  3. Step 3: Cross multiply
    480.04x = 661.96 × 322.50
  4. Step 4: Simplify right side
    480.04x = 213,482.10
  5. Step 5: Solve for x
    x = 213,482.10/480.04
  6. Step 6: Final answer
    x = 444.72

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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.