Home / 519,288.20-778,859.40-164,338.10

Finding the Fourth Proportional to 519,288.20, 778,859.40 and 164,338.10

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Solution

The fourth proportional to 519,288.20, 778,859.40 and 164,338.10 is: 246,484.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,288.20 : 778,859.40 = 164,338.10 : x
  2. Step 2: Convert to fraction form
    519,288.20/778,859.40 = 164,338.10/x
  3. Step 3: Cross multiply
    519,288.20x = 778,859.40 × 164,338.10
  4. Step 4: Simplify right side
    519,288.20x = 127,996,273,963.14
  5. Step 5: Solve for x
    x = 127,996,273,963.14/519,288.20
  6. Step 6: Final answer
    x = 246,484.08

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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.