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Finding the Fourth Proportional to 216,037.80, 324,056.70 and 127,464.30

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Solution

The fourth proportional to 216,037.80, 324,056.70 and 127,464.30 is: 191,196.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,037.80 : 324,056.70 = 127,464.30 : x
  2. Step 2: Convert to fraction form
    216,037.80/324,056.70 = 127,464.30/x
  3. Step 3: Cross multiply
    216,037.80x = 324,056.70 × 127,464.30
  4. Step 4: Simplify right side
    216,037.80x = 41,305,660,425.81
  5. Step 5: Solve for x
    x = 41,305,660,425.81/216,037.80
  6. Step 6: Final answer
    x = 191,196.45

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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.