Home / 345,357.10-476,466.38-209,292.89

Finding the Fourth Proportional to 345,357.10, 476,466.38 and 209,292.89

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Solution

The fourth proportional to 345,357.10, 476,466.38 and 209,292.89 is: 288,747.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,357.10 : 476,466.38 = 209,292.89 : x
  2. Step 2: Convert to fraction form
    345,357.10/476,466.38 = 209,292.89/x
  3. Step 3: Cross multiply
    345,357.10x = 476,466.38 × 209,292.89
  4. Step 4: Simplify right side
    345,357.10x = 99,721,025,658.04
  5. Step 5: Solve for x
    x = 99,721,025,658.04/345,357.10
  6. Step 6: Final answer
    x = 288,747.58

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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.