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Finding the Fourth Proportional to 366,497.28, 549,756.72 and 138,743.10

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Solution

The fourth proportional to 366,497.28, 549,756.72 and 138,743.10 is: 208,118.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,497.28 : 549,756.72 = 138,743.10 : x
  2. Step 2: Convert to fraction form
    366,497.28/549,756.72 = 138,743.10/x
  3. Step 3: Cross multiply
    366,497.28x = 549,756.72 × 138,743.10
  4. Step 4: Simplify right side
    366,497.28x = 76,274,951,578.63
  5. Step 5: Solve for x
    x = 76,274,951,578.63/366,497.28
  6. Step 6: Final answer
    x = 208,118.74

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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.