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Finding the Fourth Proportional to 260,058.60, 389,828.70 and 119,572.20

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Solution

The fourth proportional to 260,058.60, 389,828.70 and 119,572.20 is: 179,239.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,058.60 : 389,828.70 = 119,572.20 : x
  2. Step 2: Convert to fraction form
    260,058.60/389,828.70 = 119,572.20/x
  3. Step 3: Cross multiply
    260,058.60x = 389,828.70 × 119,572.20
  4. Step 4: Simplify right side
    260,058.60x = 46,612,675,282.14
  5. Step 5: Solve for x
    x = 46,612,675,282.14/260,058.60
  6. Step 6: Final answer
    x = 179,239.12

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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.