Home / 420,152.18-579,816.92-229,165.58

Finding the Fourth Proportional to 420,152.18, 579,816.92 and 229,165.58

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Solution

The fourth proportional to 420,152.18, 579,816.92 and 229,165.58 is: 316,252.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,152.18 : 579,816.92 = 229,165.58 : x
  2. Step 2: Convert to fraction form
    420,152.18/579,816.92 = 229,165.58/x
  3. Step 3: Cross multiply
    420,152.18x = 579,816.92 × 229,165.58
  4. Step 4: Simplify right side
    420,152.18x = 132,874,082,788.07
  5. Step 5: Solve for x
    x = 132,874,082,788.07/420,152.18
  6. Step 6: Final answer
    x = 316,252.28

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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.