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Finding the Fourth Proportional to 216,752.30, 325,221.86 and 90,417.41

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Solution

The fourth proportional to 216,752.30, 325,221.86 and 90,417.41 is: 135,665.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,752.30 : 325,221.86 = 90,417.41 : x
  2. Step 2: Convert to fraction form
    216,752.30/325,221.86 = 90,417.41/x
  3. Step 3: Cross multiply
    216,752.30x = 325,221.86 × 90,417.41
  4. Step 4: Simplify right side
    216,752.30x = 29,405,718,256.58
  5. Step 5: Solve for x
    x = 29,405,718,256.58/216,752.30
  6. Step 6: Final answer
    x = 135,665.08

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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.