Home / 385,320.40-577,246.20-207,768.40

Finding the Fourth Proportional to 385,320.40, 577,246.20 and 207,768.40

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Solution

The fourth proportional to 385,320.40, 577,246.20 and 207,768.40 is: 311,256.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,320.40 : 577,246.20 = 207,768.40 : x
  2. Step 2: Convert to fraction form
    385,320.40/577,246.20 = 207,768.40/x
  3. Step 3: Cross multiply
    385,320.40x = 577,246.20 × 207,768.40
  4. Step 4: Simplify right side
    385,320.40x = 119,933,519,380.08
  5. Step 5: Solve for x
    x = 119,933,519,380.08/385,320.40
  6. Step 6: Final answer
    x = 311,256.60

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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.