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Finding the Fourth Proportional to 210,167.52, 290,031.20 and 134,716.20

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Solution

The fourth proportional to 210,167.52, 290,031.20 and 134,716.20 is: 185,908.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,167.52 : 290,031.20 = 134,716.20 : x
  2. Step 2: Convert to fraction form
    210,167.52/290,031.20 = 134,716.20/x
  3. Step 3: Cross multiply
    210,167.52x = 290,031.20 × 134,716.20
  4. Step 4: Simplify right side
    210,167.52x = 39,071,901,145.44
  5. Step 5: Solve for x
    x = 39,071,901,145.44/210,167.52
  6. Step 6: Final answer
    x = 185,908.37

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1.5x scale

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.