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Finding the Fourth Proportional to 150,212.90, 207,303.84 and 86,554.82

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Solution

The fourth proportional to 150,212.90, 207,303.84 and 86,554.82 is: 119,451.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,212.90 : 207,303.84 = 86,554.82 : x
  2. Step 2: Convert to fraction form
    150,212.90/207,303.84 = 86,554.82/x
  3. Step 3: Cross multiply
    150,212.90x = 207,303.84 × 86,554.82
  4. Step 4: Simplify right side
    150,212.90x = 17,943,146,556.51
  5. Step 5: Solve for x
    x = 17,943,146,556.51/150,212.90
  6. Step 6: Final answer
    x = 119,451.44

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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.