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Finding the Fourth Proportional to 248,262.32, 372,392.91 and 90,426.26

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Solution

The fourth proportional to 248,262.32, 372,392.91 and 90,426.26 is: 135,639.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,262.32 : 372,392.91 = 90,426.26 : x
  2. Step 2: Convert to fraction form
    248,262.32/372,392.91 = 90,426.26/x
  3. Step 3: Cross multiply
    248,262.32x = 372,392.91 × 90,426.26
  4. Step 4: Simplify right side
    248,262.32x = 33,674,098,101.82
  5. Step 5: Solve for x
    x = 33,674,098,101.82/248,262.32
  6. Step 6: Final answer
    x = 135,639.18

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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.