Home / 385,332.20-577,998.30-245,709.80

Finding the Fourth Proportional to 385,332.20, 577,998.30 and 245,709.80

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Solution

The fourth proportional to 385,332.20, 577,998.30 and 245,709.80 is: 368,564.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,332.20 : 577,998.30 = 245,709.80 : x
  2. Step 2: Convert to fraction form
    385,332.20/577,998.30 = 245,709.80/x
  3. Step 3: Cross multiply
    385,332.20x = 577,998.30 × 245,709.80
  4. Step 4: Simplify right side
    385,332.20x = 142,019,846,693.34
  5. Step 5: Solve for x
    x = 142,019,846,693.34/385,332.20
  6. Step 6: Final answer
    x = 368,564.70

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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.