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Finding the Fourth Proportional to 255,521.72, 381,313.92 and 224,422.58

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Solution

The fourth proportional to 255,521.72, 381,313.92 and 224,422.58 is: 334,904.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,521.72 : 381,313.92 = 224,422.58 : x
  2. Step 2: Convert to fraction form
    255,521.72/381,313.92 = 224,422.58/x
  3. Step 3: Cross multiply
    255,521.72x = 381,313.92 × 224,422.58
  4. Step 4: Simplify right side
    255,521.72x = 85,575,451,809.74
  5. Step 5: Solve for x
    x = 85,575,451,809.74/255,521.72
  6. Step 6: Final answer
    x = 334,904.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.