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Finding the Fourth Proportional to 210,349.32, 290,278.41 and 119,703.41

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Solution

The fourth proportional to 210,349.32, 290,278.41 and 119,703.41 is: 165,188.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,349.32 : 290,278.41 = 119,703.41 : x
  2. Step 2: Convert to fraction form
    210,349.32/290,278.41 = 119,703.41/x
  3. Step 3: Cross multiply
    210,349.32x = 290,278.41 × 119,703.41
  4. Step 4: Simplify right side
    210,349.32x = 34,747,314,074.99
  5. Step 5: Solve for x
    x = 34,747,314,074.99/210,349.32
  6. Step 6: Final answer
    x = 165,188.62

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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.