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Finding the Fourth Proportional to 270,774.47, 373,708.11 and 156,030.78

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Solution

The fourth proportional to 270,774.47, 373,708.11 and 156,030.78 is: 215,345.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,774.47 : 373,708.11 = 156,030.78 : x
  2. Step 2: Convert to fraction form
    270,774.47/373,708.11 = 156,030.78/x
  3. Step 3: Cross multiply
    270,774.47x = 373,708.11 × 156,030.78
  4. Step 4: Simplify right side
    270,774.47x = 58,309,967,895.63
  5. Step 5: Solve for x
    x = 58,309,967,895.63/270,774.47
  6. Step 6: Final answer
    x = 215,345.15

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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.