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Finding the Fourth Proportional to 262,144.80, 393,508.80 and 162,417.60

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Solution

The fourth proportional to 262,144.80, 393,508.80 and 162,417.60 is: 243,807.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,144.80 : 393,508.80 = 162,417.60 : x
  2. Step 2: Convert to fraction form
    262,144.80/393,508.80 = 162,417.60/x
  3. Step 3: Cross multiply
    262,144.80x = 393,508.80 × 162,417.60
  4. Step 4: Simplify right side
    262,144.80x = 63,912,754,874.88
  5. Step 5: Solve for x
    x = 63,912,754,874.88/262,144.80
  6. Step 6: Final answer
    x = 243,807.07

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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.