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Finding the Fourth Proportional to 209,031.63, 313,599.52 and 61,287.63

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Solution

The fourth proportional to 209,031.63, 313,599.52 and 61,287.63 is: 91,946.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,031.63 : 313,599.52 = 61,287.63 : x
  2. Step 2: Convert to fraction form
    209,031.63/313,599.52 = 61,287.63/x
  3. Step 3: Cross multiply
    209,031.63x = 313,599.52 × 61,287.63
  4. Step 4: Simplify right side
    209,031.63x = 19,219,771,349.94
  5. Step 5: Solve for x
    x = 19,219,771,349.94/209,031.63
  6. Step 6: Final answer
    x = 91,946.71

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1.5x scale

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.