Home / 216,740.28-299,117.34-121,277.73

Finding the Fourth Proportional to 216,740.28, 299,117.34 and 121,277.73

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Solution

The fourth proportional to 216,740.28, 299,117.34 and 121,277.73 is: 167,372.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,740.28 : 299,117.34 = 121,277.73 : x
  2. Step 2: Convert to fraction form
    216,740.28/299,117.34 = 121,277.73/x
  3. Step 3: Cross multiply
    216,740.28x = 299,117.34 × 121,277.73
  4. Step 4: Simplify right side
    216,740.28x = 36,276,271,998.84
  5. Step 5: Solve for x
    x = 36,276,271,998.84/216,740.28
  6. Step 6: Final answer
    x = 167,372.08

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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.