Home / 320,784.06-442,689.40-177,550.14

Finding the Fourth Proportional to 320,784.06, 442,689.40 and 177,550.14

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Solution

The fourth proportional to 320,784.06, 442,689.40 and 177,550.14 is: 245,023.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,784.06 : 442,689.40 = 177,550.14 : x
  2. Step 2: Convert to fraction form
    320,784.06/442,689.40 = 177,550.14/x
  3. Step 3: Cross multiply
    320,784.06x = 442,689.40 × 177,550.14
  4. Step 4: Simplify right side
    320,784.06x = 78,599,564,946.52
  5. Step 5: Solve for x
    x = 78,599,564,946.52/320,784.06
  6. Step 6: Final answer
    x = 245,023.29

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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.