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Finding the Fourth Proportional to 210,155.88, 290,032.32 and 119,540.22

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Solution

The fourth proportional to 210,155.88, 290,032.32 and 119,540.22 is: 164,975.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,155.88 : 290,032.32 = 119,540.22 : x
  2. Step 2: Convert to fraction form
    210,155.88/290,032.32 = 119,540.22/x
  3. Step 3: Cross multiply
    210,155.88x = 290,032.32 × 119,540.22
  4. Step 4: Simplify right side
    210,155.88x = 34,670,527,339.91
  5. Step 5: Solve for x
    x = 34,670,527,339.91/210,155.88
  6. Step 6: Final answer
    x = 164,975.29

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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.