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Finding the Fourth Proportional to 216,151.44, 324,005.57 and 89,864.94

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Solution

The fourth proportional to 216,151.44, 324,005.57 and 89,864.94 is: 134,705.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,151.44 : 324,005.57 = 89,864.94 : x
  2. Step 2: Convert to fraction form
    216,151.44/324,005.57 = 89,864.94/x
  3. Step 3: Cross multiply
    216,151.44x = 324,005.57 × 89,864.94
  4. Step 4: Simplify right side
    216,151.44x = 29,116,742,210.41
  5. Step 5: Solve for x
    x = 29,116,742,210.41/216,151.44
  6. Step 6: Final answer
    x = 134,705.29

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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.