Home / 386,056.90-579,056.55-161,359.30

Finding the Fourth Proportional to 386,056.90, 579,056.55 and 161,359.30

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Solution

The fourth proportional to 386,056.90, 579,056.55 and 161,359.30 is: 242,026.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,056.90 : 579,056.55 = 161,359.30 : x
  2. Step 2: Convert to fraction form
    386,056.90/579,056.55 = 161,359.30/x
  3. Step 3: Cross multiply
    386,056.90x = 579,056.55 × 161,359.30
  4. Step 4: Simplify right side
    386,056.90x = 93,436,159,568.42
  5. Step 5: Solve for x
    x = 93,436,159,568.42/386,056.90
  6. Step 6: Final answer
    x = 242,026.91

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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.