Home / 211,597.11-316,980.27-122,663.70

Finding the Fourth Proportional to 211,597.11, 316,980.27 and 122,663.70

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Solution

The fourth proportional to 211,597.11, 316,980.27 and 122,663.70 is: 183,754.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,597.11 : 316,980.27 = 122,663.70 : x
  2. Step 2: Convert to fraction form
    211,597.11/316,980.27 = 122,663.70/x
  3. Step 3: Cross multiply
    211,597.11x = 316,980.27 × 122,663.70
  4. Step 4: Simplify right side
    211,597.11x = 38,881,972,745.20
  5. Step 5: Solve for x
    x = 38,881,972,745.20/211,597.11
  6. Step 6: Final answer
    x = 183,754.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.