Home / 319,161.12-440,422.32-175,913.28

Finding the Fourth Proportional to 319,161.12, 440,422.32 and 175,913.28

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Solution

The fourth proportional to 319,161.12, 440,422.32 and 175,913.28 is: 242,749.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,161.12 : 440,422.32 = 175,913.28 : x
  2. Step 2: Convert to fraction form
    319,161.12/440,422.32 = 175,913.28/x
  3. Step 3: Cross multiply
    319,161.12x = 440,422.32 × 175,913.28
  4. Step 4: Simplify right side
    319,161.12x = 77,476,134,896.41
  5. Step 5: Solve for x
    x = 77,476,134,896.41/319,161.12
  6. Step 6: Final answer
    x = 242,749.29

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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.