Home / 211,393.04-291,722.30-115,897.70

Finding the Fourth Proportional to 211,393.04, 291,722.30 and 115,897.70

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Solution

The fourth proportional to 211,393.04, 291,722.30 and 115,897.70 is: 159,938.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,393.04 : 291,722.30 = 115,897.70 : x
  2. Step 2: Convert to fraction form
    211,393.04/291,722.30 = 115,897.70/x
  3. Step 3: Cross multiply
    211,393.04x = 291,722.30 × 115,897.70
  4. Step 4: Simplify right side
    211,393.04x = 33,809,943,608.71
  5. Step 5: Solve for x
    x = 33,809,943,608.71/211,393.04
  6. Step 6: Final answer
    x = 159,938.77

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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.