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Finding the Fourth Proportional to 213,301.20, 319,798.20 and 119,835.60

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Solution

The fourth proportional to 213,301.20, 319,798.20 and 119,835.60 is: 179,667.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,301.20 : 319,798.20 = 119,835.60 : x
  2. Step 2: Convert to fraction form
    213,301.20/319,798.20 = 119,835.60/x
  3. Step 3: Cross multiply
    213,301.20x = 319,798.20 × 119,835.60
  4. Step 4: Simplify right side
    213,301.20x = 38,323,209,175.92
  5. Step 5: Solve for x
    x = 38,323,209,175.92/213,301.20
  6. Step 6: Final answer
    x = 179,667.11

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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.