Home / 329,720.04-455,099.58-208,919.88

Finding the Fourth Proportional to 329,720.04, 455,099.58 and 208,919.88

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Solution

The fourth proportional to 329,720.04, 455,099.58 and 208,919.88 is: 288,363.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,720.04 : 455,099.58 = 208,919.88 : x
  2. Step 2: Convert to fraction form
    329,720.04/455,099.58 = 208,919.88/x
  3. Step 3: Cross multiply
    329,720.04x = 455,099.58 × 208,919.88
  4. Step 4: Simplify right side
    329,720.04x = 95,079,349,641.65
  5. Step 5: Solve for x
    x = 95,079,349,641.65/329,720.04
  6. Step 6: Final answer
    x = 288,363.88

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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.