Home / 345,825.93-477,167.60-209,931.42

Finding the Fourth Proportional to 345,825.93, 477,167.60 and 209,931.42

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Solution

The fourth proportional to 345,825.93, 477,167.60 and 209,931.42 is: 289,661.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,825.93 : 477,167.60 = 209,931.42 : x
  2. Step 2: Convert to fraction form
    345,825.93/477,167.60 = 209,931.42/x
  3. Step 3: Cross multiply
    345,825.93x = 477,167.60 × 209,931.42
  4. Step 4: Simplify right side
    345,825.93x = 100,172,472,370.82
  5. Step 5: Solve for x
    x = 100,172,472,370.82/345,825.93
  6. Step 6: Final answer
    x = 289,661.54

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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.