Home / 339,948.41-469,289.23-215,831.72

Finding the Fourth Proportional to 339,948.41, 469,289.23 and 215,831.72

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Solution

The fourth proportional to 339,948.41, 469,289.23 and 215,831.72 is: 297,949.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,948.41 : 469,289.23 = 215,831.72 : x
  2. Step 2: Convert to fraction form
    339,948.41/469,289.23 = 215,831.72/x
  3. Step 3: Cross multiply
    339,948.41x = 469,289.23 × 215,831.72
  4. Step 4: Simplify right side
    339,948.41x = 101,287,501,688.38
  5. Step 5: Solve for x
    x = 101,287,501,688.38/339,948.41
  6. Step 6: Final answer
    x = 297,949.63

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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.