Home / 383,631.52-529,401.28-222,476.48

Finding the Fourth Proportional to 383,631.52, 529,401.28 and 222,476.48

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Solution

The fourth proportional to 383,631.52, 529,401.28 and 222,476.48 is: 307,011.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,631.52 : 529,401.28 = 222,476.48 : x
  2. Step 2: Convert to fraction form
    383,631.52/529,401.28 = 222,476.48/x
  3. Step 3: Cross multiply
    383,631.52x = 529,401.28 × 222,476.48
  4. Step 4: Simplify right side
    383,631.52x = 117,779,333,281.89
  5. Step 5: Solve for x
    x = 117,779,333,281.89/383,631.52
  6. Step 6: Final answer
    x = 307,011.62

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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.