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Finding the Fourth Proportional to 265,525.51, 398,327.57 and 85,550.62

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Solution

The fourth proportional to 265,525.51, 398,327.57 and 85,550.62 is: 128,338.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,525.51 : 398,327.57 = 85,550.62 : x
  2. Step 2: Convert to fraction form
    265,525.51/398,327.57 = 85,550.62/x
  3. Step 3: Cross multiply
    265,525.51x = 398,327.57 × 85,550.62
  4. Step 4: Simplify right side
    265,525.51x = 34,077,170,148.84
  5. Step 5: Solve for x
    x = 34,077,170,148.84/265,525.51
  6. Step 6: Final answer
    x = 128,338.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.