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Finding the Fourth Proportional to 372,470.92, 514,021.47 and 211,332.76

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Solution

The fourth proportional to 372,470.92, 514,021.47 and 211,332.76 is: 291,645.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,470.92 : 514,021.47 = 211,332.76 : x
  2. Step 2: Convert to fraction form
    372,470.92/514,021.47 = 211,332.76/x
  3. Step 3: Cross multiply
    372,470.92x = 514,021.47 × 211,332.76
  4. Step 4: Simplify right side
    372,470.92x = 108,629,575,954.36
  5. Step 5: Solve for x
    x = 108,629,575,954.36/372,470.92
  6. Step 6: Final answer
    x = 291,645.79

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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.