Home / 211,125.66-291,342.30-115,630.32

Finding the Fourth Proportional to 211,125.66, 291,342.30 and 115,630.32

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Solution

The fourth proportional to 211,125.66, 291,342.30 and 115,630.32 is: 159,563.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,125.66 : 291,342.30 = 115,630.32 : x
  2. Step 2: Convert to fraction form
    211,125.66/291,342.30 = 115,630.32/x
  3. Step 3: Cross multiply
    211,125.66x = 291,342.30 × 115,630.32
  4. Step 4: Simplify right side
    211,125.66x = 33,688,003,378.54
  5. Step 5: Solve for x
    x = 33,688,003,378.54/211,125.66
  6. Step 6: Final answer
    x = 159,563.76

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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.