Home / 216,521.28-324,968.85-191,298.36

Finding the Fourth Proportional to 216,521.28, 324,968.85 and 191,298.36

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Solution

The fourth proportional to 216,521.28, 324,968.85 and 191,298.36 is: 287,112.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,521.28 : 324,968.85 = 191,298.36 : x
  2. Step 2: Convert to fraction form
    216,521.28/324,968.85 = 191,298.36/x
  3. Step 3: Cross multiply
    216,521.28x = 324,968.85 × 191,298.36
  4. Step 4: Simplify right side
    216,521.28x = 62,166,008,056.09
  5. Step 5: Solve for x
    x = 62,166,008,056.09/216,521.28
  6. Step 6: Final answer
    x = 287,112.69

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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.