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Finding the Fourth Proportional to 296.01, 407.84 and 283.05

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Solution

The fourth proportional to 296.01, 407.84 and 283.05 is: 389.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.01 : 407.84 = 283.05 : x
  2. Step 2: Convert to fraction form
    296.01/407.84 = 283.05/x
  3. Step 3: Cross multiply
    296.01x = 407.84 × 283.05
  4. Step 4: Simplify right side
    296.01x = 115,437.70
  5. Step 5: Solve for x
    x = 115,437.70/296.01
  6. Step 6: Final answer
    x = 389.98

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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.