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Finding the Fourth Proportional to 262,392.40, 393,005.40 and 227,400.40

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Solution

The fourth proportional to 262,392.40, 393,005.40 and 227,400.40 is: 340,595.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,392.40 : 393,005.40 = 227,400.40 : x
  2. Step 2: Convert to fraction form
    262,392.40/393,005.40 = 227,400.40/x
  3. Step 3: Cross multiply
    262,392.40x = 393,005.40 × 227,400.40
  4. Step 4: Simplify right side
    262,392.40x = 89,369,585,162.16
  5. Step 5: Solve for x
    x = 89,369,585,162.16/262,392.40
  6. Step 6: Final answer
    x = 340,595.17

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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.