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Finding the Fourth Proportional to 245,173.96, 338,341.38 and 137,748.52

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Solution

The fourth proportional to 245,173.96, 338,341.38 and 137,748.52 is: 190,093.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,173.96 : 338,341.38 = 137,748.52 : x
  2. Step 2: Convert to fraction form
    245,173.96/338,341.38 = 137,748.52/x
  3. Step 3: Cross multiply
    245,173.96x = 338,341.38 × 137,748.52
  4. Step 4: Simplify right side
    245,173.96x = 46,606,024,349.76
  5. Step 5: Solve for x
    x = 46,606,024,349.76/245,173.96
  6. Step 6: Final answer
    x = 190,093.70

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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.