Home / 319,422.20-440,786.72-176,173.70

Finding the Fourth Proportional to 319,422.20, 440,786.72 and 176,173.70

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Solution

The fourth proportional to 319,422.20, 440,786.72 and 176,173.70 is: 243,110.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,422.20 : 440,786.72 = 176,173.70 : x
  2. Step 2: Convert to fraction form
    319,422.20/440,786.72 = 176,173.70/x
  3. Step 3: Cross multiply
    319,422.20x = 440,786.72 × 176,173.70
  4. Step 4: Simplify right side
    319,422.20x = 77,655,027,373.26
  5. Step 5: Solve for x
    x = 77,655,027,373.26/319,422.20
  6. Step 6: Final answer
    x = 243,110.93

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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.