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Finding the Fourth Proportional to 295.04, 439.08 and 286.40

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Solution

The fourth proportional to 295.04, 439.08 and 286.40 is: 426.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.04 : 439.08 = 286.40 : x
  2. Step 2: Convert to fraction form
    295.04/439.08 = 286.40/x
  3. Step 3: Cross multiply
    295.04x = 439.08 × 286.40
  4. Step 4: Simplify right side
    295.04x = 125,752.51
  5. Step 5: Solve for x
    x = 125,752.51/295.04
  6. Step 6: Final answer
    x = 426.22

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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.