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Finding the Fourth Proportional to 540.18, 807.36 and 483.12

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Solution

The fourth proportional to 540.18, 807.36 and 483.12 is: 722.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.18 : 807.36 = 483.12 : x
  2. Step 2: Convert to fraction form
    540.18/807.36 = 483.12/x
  3. Step 3: Cross multiply
    540.18x = 807.36 × 483.12
  4. Step 4: Simplify right side
    540.18x = 390,051.76
  5. Step 5: Solve for x
    x = 390,051.76/540.18
  6. Step 6: Final answer
    x = 722.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.