Home / 211,301.20-291,603.05-115,807.87

Finding the Fourth Proportional to 211,301.20, 291,603.05 and 115,807.87

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Solution

The fourth proportional to 211,301.20, 291,603.05 and 115,807.87 is: 159,818.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,301.20 : 291,603.05 = 115,807.87 : x
  2. Step 2: Convert to fraction form
    211,301.20/291,603.05 = 115,807.87/x
  3. Step 3: Cross multiply
    211,301.20x = 291,603.05 × 115,807.87
  4. Step 4: Simplify right side
    211,301.20x = 33,769,928,106.00
  5. Step 5: Solve for x
    x = 33,769,928,106.00/211,301.20
  6. Step 6: Final answer
    x = 159,818.91

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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.