Home / 519,135.40-778,557.30-164,258.20

Finding the Fourth Proportional to 519,135.40, 778,557.30 and 164,258.20

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Solution

The fourth proportional to 519,135.40, 778,557.30 and 164,258.20 is: 246,341.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,135.40 : 778,557.30 = 164,258.20 : x
  2. Step 2: Convert to fraction form
    519,135.40/778,557.30 = 164,258.20/x
  3. Step 3: Cross multiply
    519,135.40x = 778,557.30 × 164,258.20
  4. Step 4: Simplify right side
    519,135.40x = 127,884,420,694.86
  5. Step 5: Solve for x
    x = 127,884,420,694.86/519,135.40
  6. Step 6: Final answer
    x = 246,341.17

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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.