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Finding the Fourth Proportional to 213,767.04, 294,952.56 and 128,882.28

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Solution

The fourth proportional to 213,767.04, 294,952.56 and 128,882.28 is: 177,829.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,767.04 : 294,952.56 = 128,882.28 : x
  2. Step 2: Convert to fraction form
    213,767.04/294,952.56 = 128,882.28/x
  3. Step 3: Cross multiply
    213,767.04x = 294,952.56 × 128,882.28
  4. Step 4: Simplify right side
    213,767.04x = 38,014,158,424.64
  5. Step 5: Solve for x
    x = 38,014,158,424.64/213,767.04
  6. Step 6: Final answer
    x = 177,829.84

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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.