Home / 320,856.17-442,781.64-175,671.36

Finding the Fourth Proportional to 320,856.17, 442,781.64 and 175,671.36

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Solution

The fourth proportional to 320,856.17, 442,781.64 and 175,671.36 is: 242,426.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,856.17 : 442,781.64 = 175,671.36 : x
  2. Step 2: Convert to fraction form
    320,856.17/442,781.64 = 175,671.36/x
  3. Step 3: Cross multiply
    320,856.17x = 442,781.64 × 175,671.36
  4. Step 4: Simplify right side
    320,856.17x = 77,784,052,881.83
  5. Step 5: Solve for x
    x = 77,784,052,881.83/320,856.17
  6. Step 6: Final answer
    x = 242,426.55

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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.