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Finding the Fourth Proportional to 210,741.60, 290,808.60 and 115,246.26

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Solution

The fourth proportional to 210,741.60, 290,808.60 and 115,246.26 is: 159,031.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,741.60 : 290,808.60 = 115,246.26 : x
  2. Step 2: Convert to fraction form
    210,741.60/290,808.60 = 115,246.26/x
  3. Step 3: Cross multiply
    210,741.60x = 290,808.60 × 115,246.26
  4. Step 4: Simplify right side
    210,741.60x = 33,514,603,525.84
  5. Step 5: Solve for x
    x = 33,514,603,525.84/210,741.60
  6. Step 6: Final answer
    x = 159,031.74

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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.