Home / 231,423.91-319,273.69-145,332.25

Finding the Fourth Proportional to 231,423.91, 319,273.69 and 145,332.25

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Solution

The fourth proportional to 231,423.91, 319,273.69 and 145,332.25 is: 200,501.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,423.91 : 319,273.69 = 145,332.25 : x
  2. Step 2: Convert to fraction form
    231,423.91/319,273.69 = 145,332.25/x
  3. Step 3: Cross multiply
    231,423.91x = 319,273.69 × 145,332.25
  4. Step 4: Simplify right side
    231,423.91x = 46,400,763,733.50
  5. Step 5: Solve for x
    x = 46,400,763,733.50/231,423.91
  6. Step 6: Final answer
    x = 200,501.17

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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.