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Finding the Fourth Proportional to 324,678.70, 448,055.31 and 181,438.71

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Solution

The fourth proportional to 324,678.70, 448,055.31 and 181,438.71 is: 250,384.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,678.70 : 448,055.31 = 181,438.71 : x
  2. Step 2: Convert to fraction form
    324,678.70/448,055.31 = 181,438.71/x
  3. Step 3: Cross multiply
    324,678.70x = 448,055.31 × 181,438.71
  4. Step 4: Simplify right side
    324,678.70x = 81,294,577,455.05
  5. Step 5: Solve for x
    x = 81,294,577,455.05/324,678.70
  6. Step 6: Final answer
    x = 250,384.70

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1.5x scale

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.