Home / 519,131.40-778,551.30-164,254.20

Finding the Fourth Proportional to 519,131.40, 778,551.30 and 164,254.20

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Solution

The fourth proportional to 519,131.40, 778,551.30 and 164,254.20 is: 246,335.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,131.40 : 778,551.30 = 164,254.20 : x
  2. Step 2: Convert to fraction form
    519,131.40/778,551.30 = 164,254.20/x
  3. Step 3: Cross multiply
    519,131.40x = 778,551.30 × 164,254.20
  4. Step 4: Simplify right side
    519,131.40x = 127,880,320,940.46
  5. Step 5: Solve for x
    x = 127,880,320,940.46/519,131.40
  6. Step 6: Final answer
    x = 246,335.17

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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.