Home / 211,223.52-291,488.40-115,733.84

Finding the Fourth Proportional to 211,223.52, 291,488.40 and 115,733.84

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Solution

The fourth proportional to 211,223.52, 291,488.40 and 115,733.84 is: 159,712.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,223.52 : 291,488.40 = 115,733.84 : x
  2. Step 2: Convert to fraction form
    211,223.52/291,488.40 = 115,733.84/x
  3. Step 3: Cross multiply
    211,223.52x = 291,488.40 × 115,733.84
  4. Step 4: Simplify right side
    211,223.52x = 33,735,071,847.46
  5. Step 5: Solve for x
    x = 33,735,071,847.46/211,223.52
  6. Step 6: Final answer
    x = 159,712.67

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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.