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Finding the Fourth Proportional to 338,641.73, 507,990.23 and 170,075.34

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Solution

The fourth proportional to 338,641.73, 507,990.23 and 170,075.34 is: 255,126.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,641.73 : 507,990.23 = 170,075.34 : x
  2. Step 2: Convert to fraction form
    338,641.73/507,990.23 = 170,075.34/x
  3. Step 3: Cross multiply
    338,641.73x = 507,990.23 × 170,075.34
  4. Step 4: Simplify right side
    338,641.73x = 86,396,610,233.55
  5. Step 5: Solve for x
    x = 86,396,610,233.55/338,641.73
  6. Step 6: Final answer
    x = 255,126.89

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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.