Home / 385,580.20-578,370.30-250,277.80

Finding the Fourth Proportional to 385,580.20, 578,370.30 and 250,277.80

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Solution

The fourth proportional to 385,580.20, 578,370.30 and 250,277.80 is: 375,416.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,580.20 : 578,370.30 = 250,277.80 : x
  2. Step 2: Convert to fraction form
    385,580.20/578,370.30 = 250,277.80/x
  3. Step 3: Cross multiply
    385,580.20x = 578,370.30 × 250,277.80
  4. Step 4: Simplify right side
    385,580.20x = 144,753,246,269.34
  5. Step 5: Solve for x
    x = 144,753,246,269.34/385,580.20
  6. Step 6: Final answer
    x = 375,416.70

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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.