Home / 211,316.12-291,614.50-115,822.58

Finding the Fourth Proportional to 211,316.12, 291,614.50 and 115,822.58

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Solution

The fourth proportional to 211,316.12, 291,614.50 and 115,822.58 is: 159,834.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,316.12 : 291,614.50 = 115,822.58 : x
  2. Step 2: Convert to fraction form
    211,316.12/291,614.50 = 115,822.58/x
  3. Step 3: Cross multiply
    211,316.12x = 291,614.50 × 115,822.58
  4. Step 4: Simplify right side
    211,316.12x = 33,775,543,755.41
  5. Step 5: Solve for x
    x = 33,775,543,755.41/211,316.12
  6. Step 6: Final answer
    x = 159,834.20

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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.