Home / 348,374.20-521,783.70-268,864.60

Finding the Fourth Proportional to 348,374.20, 521,783.70 and 268,864.60

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Solution

The fourth proportional to 348,374.20, 521,783.70 and 268,864.60 is: 402,696.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,374.20 : 521,783.70 = 268,864.60 : x
  2. Step 2: Convert to fraction form
    348,374.20/521,783.70 = 268,864.60/x
  3. Step 3: Cross multiply
    348,374.20x = 521,783.70 × 268,864.60
  4. Step 4: Simplify right side
    348,374.20x = 140,289,165,787.02
  5. Step 5: Solve for x
    x = 140,289,165,787.02/348,374.20
  6. Step 6: Final answer
    x = 402,696.77

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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.