Home / 324,045.28-447,075.65-209,391.58

Finding the Fourth Proportional to 324,045.28, 447,075.65 and 209,391.58

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Solution

The fourth proportional to 324,045.28, 447,075.65 and 209,391.58 is: 288,891.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,045.28 : 447,075.65 = 209,391.58 : x
  2. Step 2: Convert to fraction form
    324,045.28/447,075.65 = 209,391.58/x
  3. Step 3: Cross multiply
    324,045.28x = 447,075.65 × 209,391.58
  4. Step 4: Simplify right side
    324,045.28x = 93,613,877,815.35
  5. Step 5: Solve for x
    x = 93,613,877,815.35/324,045.28
  6. Step 6: Final answer
    x = 288,891.34

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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.