Home / 385,766.87-578,369.93-161,191.58

Finding the Fourth Proportional to 385,766.87, 578,369.93 and 161,191.58

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Solution

The fourth proportional to 385,766.87, 578,369.93 and 161,191.58 is: 241,670.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,766.87 : 578,369.93 = 161,191.58 : x
  2. Step 2: Convert to fraction form
    385,766.87/578,369.93 = 161,191.58/x
  3. Step 3: Cross multiply
    385,766.87x = 578,369.93 × 161,191.58
  4. Step 4: Simplify right side
    385,766.87x = 93,228,359,143.38
  5. Step 5: Solve for x
    x = 93,228,359,143.38/385,766.87
  6. Step 6: Final answer
    x = 241,670.21

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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.