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Finding the Fourth Proportional to 210,540.80, 290,562.86 and 119,900.59

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Solution

The fourth proportional to 210,540.80, 290,562.86 and 119,900.59 is: 165,472.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,540.80 : 290,562.86 = 119,900.59 : x
  2. Step 2: Convert to fraction form
    210,540.80/290,562.86 = 119,900.59/x
  3. Step 3: Cross multiply
    210,540.80x = 290,562.86 × 119,900.59
  4. Step 4: Simplify right side
    210,540.80x = 34,838,658,346.09
  5. Step 5: Solve for x
    x = 34,838,658,346.09/210,540.80
  6. Step 6: Final answer
    x = 165,472.24

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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.