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Finding the Fourth Proportional to 219,341.32, 302,691.98 and 118,739.32

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Solution

The fourth proportional to 219,341.32, 302,691.98 and 118,739.32 is: 163,860.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,341.32 : 302,691.98 = 118,739.32 : x
  2. Step 2: Convert to fraction form
    219,341.32/302,691.98 = 118,739.32/x
  3. Step 3: Cross multiply
    219,341.32x = 302,691.98 × 118,739.32
  4. Step 4: Simplify right side
    219,341.32x = 35,941,439,874.65
  5. Step 5: Solve for x
    x = 35,941,439,874.65/219,341.32
  6. Step 6: Final answer
    x = 163,860.78

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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.