Home / 220,567.20-330,688.80-87,381.60

Finding the Fourth Proportional to 220,567.20, 330,688.80 and 87,381.60

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Solution

The fourth proportional to 220,567.20, 330,688.80 and 87,381.60 is: 131,008.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,567.20 : 330,688.80 = 87,381.60 : x
  2. Step 2: Convert to fraction form
    220,567.20/330,688.80 = 87,381.60/x
  3. Step 3: Cross multiply
    220,567.20x = 330,688.80 × 87,381.60
  4. Step 4: Simplify right side
    220,567.20x = 28,896,116,446.08
  5. Step 5: Solve for x
    x = 28,896,116,446.08/220,567.20
  6. Step 6: Final answer
    x = 131,008.22

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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.