Home / 320,911.46-442,887.52-177,671.50

Finding the Fourth Proportional to 320,911.46, 442,887.52 and 177,671.50

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Solution

The fourth proportional to 320,911.46, 442,887.52 and 177,671.50 is: 245,203.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,911.46 : 442,887.52 = 177,671.50 : x
  2. Step 2: Convert to fraction form
    320,911.46/442,887.52 = 177,671.50/x
  3. Step 3: Cross multiply
    320,911.46x = 442,887.52 × 177,671.50
  4. Step 4: Simplify right side
    320,911.46x = 78,688,490,009.68
  5. Step 5: Solve for x
    x = 78,688,490,009.68/320,911.46
  6. Step 6: Final answer
    x = 245,203.12

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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.