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Finding the Fourth Proportional to 216,995.04, 325,334.84 and 90,671.45

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Solution

The fourth proportional to 216,995.04, 325,334.84 and 90,671.45 is: 135,941.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,995.04 : 325,334.84 = 90,671.45 : x
  2. Step 2: Convert to fraction form
    216,995.04/325,334.84 = 90,671.45/x
  3. Step 3: Cross multiply
    216,995.04x = 325,334.84 × 90,671.45
  4. Step 4: Simplify right side
    216,995.04x = 29,498,580,278.32
  5. Step 5: Solve for x
    x = 29,498,580,278.32/216,995.04
  6. Step 6: Final answer
    x = 135,941.27

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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.