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Finding the Fourth Proportional to 210,714.98, 290,762.79 and 124,676.60

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Solution

The fourth proportional to 210,714.98, 290,762.79 and 124,676.60 is: 172,039.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,714.98 : 290,762.79 = 124,676.60 : x
  2. Step 2: Convert to fraction form
    210,714.98/290,762.79 = 124,676.60/x
  3. Step 3: Cross multiply
    210,714.98x = 290,762.79 × 124,676.60
  4. Step 4: Simplify right side
    210,714.98x = 36,251,314,609.90
  5. Step 5: Solve for x
    x = 36,251,314,609.90/210,714.98
  6. Step 6: Final answer
    x = 172,039.57

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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.