Home / 268,078.68-369,856.09-171,339.16

Finding the Fourth Proportional to 268,078.68, 369,856.09 and 171,339.16

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Solution

The fourth proportional to 268,078.68, 369,856.09 and 171,339.16 is: 236,388.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,078.68 : 369,856.09 = 171,339.16 : x
  2. Step 2: Convert to fraction form
    268,078.68/369,856.09 = 171,339.16/x
  3. Step 3: Cross multiply
    268,078.68x = 369,856.09 × 171,339.16
  4. Step 4: Simplify right side
    268,078.68x = 63,370,831,781.48
  5. Step 5: Solve for x
    x = 63,370,831,781.48/268,078.68
  6. Step 6: Final answer
    x = 236,388.93

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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.