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Finding the Fourth Proportional to 210,230.31, 290,124.59 and 119,583.94

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Solution

The fourth proportional to 210,230.31, 290,124.59 and 119,583.94 is: 165,029.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,230.31 : 290,124.59 = 119,583.94 : x
  2. Step 2: Convert to fraction form
    210,230.31/290,124.59 = 119,583.94/x
  3. Step 3: Cross multiply
    210,230.31x = 290,124.59 × 119,583.94
  4. Step 4: Simplify right side
    210,230.31x = 34,694,241,563.08
  5. Step 5: Solve for x
    x = 34,694,241,563.08/210,230.31
  6. Step 6: Final answer
    x = 165,029.68

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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.