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Finding the Fourth Proportional to 303,353.90, 455,031.05 and 125,813.24

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Solution

The fourth proportional to 303,353.90, 455,031.05 and 125,813.24 is: 188,719.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,353.90 : 455,031.05 = 125,813.24 : x
  2. Step 2: Convert to fraction form
    303,353.90/455,031.05 = 125,813.24/x
  3. Step 3: Cross multiply
    303,353.90x = 455,031.05 × 125,813.24
  4. Step 4: Simplify right side
    303,353.90x = 57,248,927,796.88
  5. Step 5: Solve for x
    x = 57,248,927,796.88/303,353.90
  6. Step 6: Final answer
    x = 188,719.94

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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.