Home / 525,500.91-787,854.09-221,989.05

Finding the Fourth Proportional to 525,500.91, 787,854.09 and 221,989.05

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Solution

The fourth proportional to 525,500.91, 787,854.09 and 221,989.05 is: 332,815.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,500.91 : 787,854.09 = 221,989.05 : x
  2. Step 2: Convert to fraction form
    525,500.91/787,854.09 = 221,989.05/x
  3. Step 3: Cross multiply
    525,500.91x = 787,854.09 × 221,989.05
  4. Step 4: Simplify right side
    525,500.91x = 174,894,980,977.71
  5. Step 5: Solve for x
    x = 174,894,980,977.71/525,500.91
  6. Step 6: Final answer
    x = 332,815.75

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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.