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Finding the Fourth Proportional to 255,555.71, 383,334.98 and 105,714.82

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Solution

The fourth proportional to 255,555.71, 383,334.98 and 105,714.82 is: 158,572.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,555.71 : 383,334.98 = 105,714.82 : x
  2. Step 2: Convert to fraction form
    255,555.71/383,334.98 = 105,714.82/x
  3. Step 3: Cross multiply
    255,555.71x = 383,334.98 × 105,714.82
  4. Step 4: Simplify right side
    255,555.71x = 40,524,186,923.49
  5. Step 5: Solve for x
    x = 40,524,186,923.49/255,555.71
  6. Step 6: Final answer
    x = 158,572.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.