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Finding the Fourth Proportional to 407.04, 562.12 and 283.02

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Solution

The fourth proportional to 407.04, 562.12 and 283.02 is: 390.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    407.04 : 562.12 = 283.02 : x
  2. Step 2: Convert to fraction form
    407.04/562.12 = 283.02/x
  3. Step 3: Cross multiply
    407.04x = 562.12 × 283.02
  4. Step 4: Simplify right side
    407.04x = 159,091.20
  5. Step 5: Solve for x
    x = 159,091.20/407.04
  6. Step 6: Final answer
    x = 390.85

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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.