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Finding the Fourth Proportional to 480.03, 661.84 and 368.13

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Solution

The fourth proportional to 480.03, 661.84 and 368.13 is: 507.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.03 : 661.84 = 368.13 : x
  2. Step 2: Convert to fraction form
    480.03/661.84 = 368.13/x
  3. Step 3: Cross multiply
    480.03x = 661.84 × 368.13
  4. Step 4: Simplify right side
    480.03x = 243,641.32
  5. Step 5: Solve for x
    x = 243,641.32/480.03
  6. Step 6: Final answer
    x = 507.55

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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.