Home / 383,001.28-528,551.04-213,246.88

Finding the Fourth Proportional to 383,001.28, 528,551.04 and 213,246.88

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Solution

The fourth proportional to 383,001.28, 528,551.04 and 213,246.88 is: 294,285.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,001.28 : 528,551.04 = 213,246.88 : x
  2. Step 2: Convert to fraction form
    383,001.28/528,551.04 = 213,246.88/x
  3. Step 3: Cross multiply
    383,001.28x = 528,551.04 × 213,246.88
  4. Step 4: Simplify right side
    383,001.28x = 112,711,860,200.76
  5. Step 5: Solve for x
    x = 112,711,860,200.76/383,001.28
  6. Step 6: Final answer
    x = 294,285.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.