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Finding the Fourth Proportional to 270,494.77, 405,779.07 and 112,686.32

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Solution

The fourth proportional to 270,494.77, 405,779.07 and 112,686.32 is: 169,044.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,494.77 : 405,779.07 = 112,686.32 : x
  2. Step 2: Convert to fraction form
    270,494.77/405,779.07 = 112,686.32/x
  3. Step 3: Cross multiply
    270,494.77x = 405,779.07 × 112,686.32
  4. Step 4: Simplify right side
    270,494.77x = 45,725,750,131.32
  5. Step 5: Solve for x
    x = 45,725,750,131.32/270,494.77
  6. Step 6: Final answer
    x = 169,044.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.