Home / 226,490.64-312,549.21-145,921.56

Finding the Fourth Proportional to 226,490.64, 312,549.21 and 145,921.56

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Solution

The fourth proportional to 226,490.64, 312,549.21 and 145,921.56 is: 201,366.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,490.64 : 312,549.21 = 145,921.56 : x
  2. Step 2: Convert to fraction form
    226,490.64/312,549.21 = 145,921.56/x
  3. Step 3: Cross multiply
    226,490.64x = 312,549.21 × 145,921.56
  4. Step 4: Simplify right side
    226,490.64x = 45,607,668,299.97
  5. Step 5: Solve for x
    x = 45,607,668,299.97/226,490.64
  6. Step 6: Final answer
    x = 201,366.68

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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.