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Finding the Fourth Proportional to 216,854.40, 324,844.20 and 123,250.80

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Solution

The fourth proportional to 216,854.40, 324,844.20 and 123,250.80 is: 184,627.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,854.40 : 324,844.20 = 123,250.80 : x
  2. Step 2: Convert to fraction form
    216,854.40/324,844.20 = 123,250.80/x
  3. Step 3: Cross multiply
    216,854.40x = 324,844.20 × 123,250.80
  4. Step 4: Simplify right side
    216,854.40x = 40,037,307,525.36
  5. Step 5: Solve for x
    x = 40,037,307,525.36/216,854.40
  6. Step 6: Final answer
    x = 184,627.60

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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.