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Finding the Fourth Proportional to 210,377.60, 290,348.52 and 119,715.92

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Solution

The fourth proportional to 210,377.60, 290,348.52 and 119,715.92 is: 165,223.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,377.60 : 290,348.52 = 119,715.92 : x
  2. Step 2: Convert to fraction form
    210,377.60/290,348.52 = 119,715.92/x
  3. Step 3: Cross multiply
    210,377.60x = 290,348.52 × 119,715.92
  4. Step 4: Simplify right side
    210,377.60x = 34,759,340,192.44
  5. Step 5: Solve for x
    x = 34,759,340,192.44/210,377.60
  6. Step 6: Final answer
    x = 165,223.58

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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.