Home / 215,011.28-322,544.40-70,868.80

Finding the Fourth Proportional to 215,011.28, 322,544.40 and 70,868.80

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Solution

The fourth proportional to 215,011.28, 322,544.40 and 70,868.80 is: 106,312.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,011.28 : 322,544.40 = 70,868.80 : x
  2. Step 2: Convert to fraction form
    215,011.28/322,544.40 = 70,868.80/x
  3. Step 3: Cross multiply
    215,011.28x = 322,544.40 × 70,868.80
  4. Step 4: Simplify right side
    215,011.28x = 22,858,334,574.72
  5. Step 5: Solve for x
    x = 22,858,334,574.72/215,011.28
  6. Step 6: Final answer
    x = 106,312.26

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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.