Home / 211,017.32-291,204.36-115,529.96

Finding the Fourth Proportional to 211,017.32, 291,204.36 and 115,529.96

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Solution

The fourth proportional to 211,017.32, 291,204.36 and 115,529.96 is: 159,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,017.32 : 291,204.36 = 115,529.96 : x
  2. Step 2: Convert to fraction form
    211,017.32/291,204.36 = 115,529.96/x
  3. Step 3: Cross multiply
    211,017.32x = 291,204.36 × 115,529.96
  4. Step 4: Simplify right side
    211,017.32x = 33,642,828,062.63
  5. Step 5: Solve for x
    x = 33,642,828,062.63/211,017.32
  6. Step 6: Final answer
    x = 159,431.60

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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.