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Finding the Fourth Proportional to 210,275.70, 290,170.35 and 119,623.16

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Solution

The fourth proportional to 210,275.70, 290,170.35 and 119,623.16 is: 165,074.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,275.70 : 290,170.35 = 119,623.16 : x
  2. Step 2: Convert to fraction form
    210,275.70/290,170.35 = 119,623.16/x
  3. Step 3: Cross multiply
    210,275.70x = 290,170.35 × 119,623.16
  4. Step 4: Simplify right side
    210,275.70x = 34,711,094,930.73
  5. Step 5: Solve for x
    x = 34,711,094,930.73/210,275.70
  6. Step 6: Final answer
    x = 165,074.21

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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.