Home / 320,421.37-442,172.74-177,176.52

Finding the Fourth Proportional to 320,421.37, 442,172.74 and 177,176.52

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Solution

The fourth proportional to 320,421.37, 442,172.74 and 177,176.52 is: 244,498.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,421.37 : 442,172.74 = 177,176.52 : x
  2. Step 2: Convert to fraction form
    320,421.37/442,172.74 = 177,176.52/x
  3. Step 3: Cross multiply
    320,421.37x = 442,172.74 × 177,176.52
  4. Step 4: Simplify right side
    320,421.37x = 78,342,625,210.98
  5. Step 5: Solve for x
    x = 78,342,625,210.98/320,421.37
  6. Step 6: Final answer
    x = 244,498.75

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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.