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Finding the Fourth Proportional to 270,785.47, 406,095.05 and 187,083.51

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Solution

The fourth proportional to 270,785.47, 406,095.05 and 187,083.51 is: 280,567.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,785.47 : 406,095.05 = 187,083.51 : x
  2. Step 2: Convert to fraction form
    270,785.47/406,095.05 = 187,083.51/x
  3. Step 3: Cross multiply
    270,785.47x = 406,095.05 × 187,083.51
  4. Step 4: Simplify right side
    270,785.47x = 75,973,687,347.63
  5. Step 5: Solve for x
    x = 75,973,687,347.63/270,785.47
  6. Step 6: Final answer
    x = 280,567.81

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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.