Home / 248,420.80-342,822-135,244.36

Finding the Fourth Proportional to 248,420.80, 342,822 and 135,244.36

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Solution

The fourth proportional to 248,420.80, 342,822 and 135,244.36 is: 186,637.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,420.80 : 342,822 = 135,244.36 : x
  2. Step 2: Convert to fraction form
    248,420.80/342,822 = 135,244.36/x
  3. Step 3: Cross multiply
    248,420.80x = 342,822 × 135,244.36
  4. Step 4: Simplify right side
    248,420.80x = 46,364,741,983.92
  5. Step 5: Solve for x
    x = 46,364,741,983.92/248,420.80
  6. Step 6: Final answer
    x = 186,637.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.