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Finding the Fourth Proportional to 384,860.81, 530,761.73 and 248,751.65

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Solution

The fourth proportional to 384,860.81, 530,761.73 and 248,751.65 is: 343,053.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,860.81 : 530,761.73 = 248,751.65 : x
  2. Step 2: Convert to fraction form
    384,860.81/530,761.73 = 248,751.65/x
  3. Step 3: Cross multiply
    384,860.81x = 530,761.73 × 248,751.65
  4. Step 4: Simplify right side
    384,860.81x = 132,027,852,196.79
  5. Step 5: Solve for x
    x = 132,027,852,196.79/384,860.81
  6. Step 6: Final answer
    x = 343,053.52

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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.