Home / 216,507.33-298,759.59-121,011.84

Finding the Fourth Proportional to 216,507.33, 298,759.59 and 121,011.84

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Solution

The fourth proportional to 216,507.33, 298,759.59 and 121,011.84 is: 166,984.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,507.33 : 298,759.59 = 121,011.84 : x
  2. Step 2: Convert to fraction form
    216,507.33/298,759.59 = 121,011.84/x
  3. Step 3: Cross multiply
    216,507.33x = 298,759.59 × 121,011.84
  4. Step 4: Simplify right side
    216,507.33x = 36,153,447,703.55
  5. Step 5: Solve for x
    x = 36,153,447,703.55/216,507.33
  6. Step 6: Final answer
    x = 166,984.87

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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.