Home / 519,140.80-778,711.20-164,263.60

Finding the Fourth Proportional to 519,140.80, 778,711.20 and 164,263.60

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Solution

The fourth proportional to 519,140.80, 778,711.20 and 164,263.60 is: 246,395.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,140.80 : 778,711.20 = 164,263.60 : x
  2. Step 2: Convert to fraction form
    519,140.80/778,711.20 = 164,263.60/x
  3. Step 3: Cross multiply
    519,140.80x = 778,711.20 × 164,263.60
  4. Step 4: Simplify right side
    519,140.80x = 127,913,905,072.32
  5. Step 5: Solve for x
    x = 127,913,905,072.32/519,140.80
  6. Step 6: Final answer
    x = 246,395.40

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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.