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Finding the Fourth Proportional to 208,302.48, 312,203.16 and 119,612.88

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Solution

The fourth proportional to 208,302.48, 312,203.16 and 119,612.88 is: 179,275.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,302.48 : 312,203.16 = 119,612.88 : x
  2. Step 2: Convert to fraction form
    208,302.48/312,203.16 = 119,612.88/x
  3. Step 3: Cross multiply
    208,302.48x = 312,203.16 × 119,612.88
  4. Step 4: Simplify right side
    208,302.48x = 37,343,519,112.70
  5. Step 5: Solve for x
    x = 37,343,519,112.70/208,302.48
  6. Step 6: Final answer
    x = 179,275.44

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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.