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Finding the Fourth Proportional to 270,487.08, 405,767.52 and 112,678.60

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Solution

The fourth proportional to 270,487.08, 405,767.52 and 112,678.60 is: 169,033.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,487.08 : 405,767.52 = 112,678.60 : x
  2. Step 2: Convert to fraction form
    270,487.08/405,767.52 = 112,678.60/x
  3. Step 3: Cross multiply
    270,487.08x = 405,767.52 × 112,678.60
  4. Step 4: Simplify right side
    270,487.08x = 45,721,316,079.07
  5. Step 5: Solve for x
    x = 45,721,316,079.07/270,487.08
  6. Step 6: Final answer
    x = 169,033.27

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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.