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Finding the Fourth Proportional to 292.59, 439.04 and 290.37

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Solution

The fourth proportional to 292.59, 439.04 and 290.37 is: 435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.59 : 439.04 = 290.37 : x
  2. Step 2: Convert to fraction form
    292.59/439.04 = 290.37/x
  3. Step 3: Cross multiply
    292.59x = 439.04 × 290.37
  4. Step 4: Simplify right side
    292.59x = 127,482.59
  5. Step 5: Solve for x
    x = 127,482.59/292.59
  6. Step 6: Final answer
    x = 435.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.