Home / 220,015.98-330,021.18-70,254.36

Finding the Fourth Proportional to 220,015.98, 330,021.18 and 70,254.36

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Solution

The fourth proportional to 220,015.98, 330,021.18 and 70,254.36 is: 105,380.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,015.98 : 330,021.18 = 70,254.36 : x
  2. Step 2: Convert to fraction form
    220,015.98/330,021.18 = 70,254.36/x
  3. Step 3: Cross multiply
    220,015.98x = 330,021.18 × 70,254.36
  4. Step 4: Simplify right side
    220,015.98x = 23,185,426,787.34
  5. Step 5: Solve for x
    x = 23,185,426,787.34/220,015.98
  6. Step 6: Final answer
    x = 105,380.65

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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.