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Finding the Fourth Proportional to 245,147.87, 338,267.22 and 137,697.32

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Solution

The fourth proportional to 245,147.87, 338,267.22 and 137,697.32 is: 190,001.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,147.87 : 338,267.22 = 137,697.32 : x
  2. Step 2: Convert to fraction form
    245,147.87/338,267.22 = 137,697.32/x
  3. Step 3: Cross multiply
    245,147.87x = 338,267.22 × 137,697.32
  4. Step 4: Simplify right side
    245,147.87x = 46,578,487,946.51
  5. Step 5: Solve for x
    x = 46,578,487,946.51/245,147.87
  6. Step 6: Final answer
    x = 190,001.61

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1.5x scale

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.