Home / 211,051.60-291,242.28-115,556.56

Finding the Fourth Proportional to 211,051.60, 291,242.28 and 115,556.56

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Solution

The fourth proportional to 211,051.60, 291,242.28 and 115,556.56 is: 159,463.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,051.60 : 291,242.28 = 115,556.56 : x
  2. Step 2: Convert to fraction form
    211,051.60/291,242.28 = 115,556.56/x
  3. Step 3: Cross multiply
    211,051.60x = 291,242.28 × 115,556.56
  4. Step 4: Simplify right side
    211,051.60x = 33,654,956,003.36
  5. Step 5: Solve for x
    x = 33,654,956,003.36/211,051.60
  6. Step 6: Final answer
    x = 159,463.16

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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.