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Finding the Fourth Proportional to 262,275.78, 393,412.98 and 112,418.91

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Solution

The fourth proportional to 262,275.78, 393,412.98 and 112,418.91 is: 168,628.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,275.78 : 393,412.98 = 112,418.91 : x
  2. Step 2: Convert to fraction form
    262,275.78/393,412.98 = 112,418.91/x
  3. Step 3: Cross multiply
    262,275.78x = 393,412.98 × 112,418.91
  4. Step 4: Simplify right side
    262,275.78x = 44,227,058,391.45
  5. Step 5: Solve for x
    x = 44,227,058,391.45/262,275.78
  6. Step 6: Final answer
    x = 168,628.07

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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.