Home / 259,312.04-388,746.20-99,502.66

Finding the Fourth Proportional to 259,312.04, 388,746.20 and 99,502.66

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Solution

The fourth proportional to 259,312.04, 388,746.20 and 99,502.66 is: 149,168.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,312.04 : 388,746.20 = 99,502.66 : x
  2. Step 2: Convert to fraction form
    259,312.04/388,746.20 = 99,502.66/x
  3. Step 3: Cross multiply
    259,312.04x = 388,746.20 × 99,502.66
  4. Step 4: Simplify right side
    259,312.04x = 38,681,278,523.65
  5. Step 5: Solve for x
    x = 38,681,278,523.65/259,312.04
  6. Step 6: Final answer
    x = 149,168.85

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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.