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Finding the Fourth Proportional to 210,375.60, 290,345.76 and 119,713.92

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Solution

The fourth proportional to 210,375.60, 290,345.76 and 119,713.92 is: 165,220.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,375.60 : 290,345.76 = 119,713.92 : x
  2. Step 2: Convert to fraction form
    210,375.60/290,345.76 = 119,713.92/x
  3. Step 3: Cross multiply
    210,375.60x = 290,345.76 × 119,713.92
  4. Step 4: Simplify right side
    210,375.60x = 34,758,429,084.98
  5. Step 5: Solve for x
    x = 34,758,429,084.98/210,375.60
  6. Step 6: Final answer
    x = 165,220.82

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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.