Home / 262,184.20-392,984.70-143,940.40

Finding the Fourth Proportional to 262,184.20, 392,984.70 and 143,940.40

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Solution

The fourth proportional to 262,184.20, 392,984.70 and 143,940.40 is: 215,750.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,184.20 : 392,984.70 = 143,940.40 : x
  2. Step 2: Convert to fraction form
    262,184.20/392,984.70 = 143,940.40/x
  3. Step 3: Cross multiply
    262,184.20x = 392,984.70 × 143,940.40
  4. Step 4: Simplify right side
    262,184.20x = 56,566,374,911.88
  5. Step 5: Solve for x
    x = 56,566,374,911.88/262,184.20
  6. Step 6: Final answer
    x = 215,750.51

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1.5x scale

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.