Home / 218,816.97-328,094.02-85,538.49

Finding the Fourth Proportional to 218,816.97, 328,094.02 and 85,538.49

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Solution

The fourth proportional to 218,816.97, 328,094.02 and 85,538.49 is: 128,256.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,816.97 : 328,094.02 = 85,538.49 : x
  2. Step 2: Convert to fraction form
    218,816.97/328,094.02 = 85,538.49/x
  3. Step 3: Cross multiply
    218,816.97x = 328,094.02 × 85,538.49
  4. Step 4: Simplify right side
    218,816.97x = 28,064,667,048.83
  5. Step 5: Solve for x
    x = 28,064,667,048.83/218,816.97
  6. Step 6: Final answer
    x = 128,256.36

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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.