Home / 338,374.56-507,533.04-138,637.92

Finding the Fourth Proportional to 338,374.56, 507,533.04 and 138,637.92

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Solution

The fourth proportional to 338,374.56, 507,533.04 and 138,637.92 is: 207,945.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,374.56 : 507,533.04 = 138,637.92 : x
  2. Step 2: Convert to fraction form
    338,374.56/507,533.04 = 138,637.92/x
  3. Step 3: Cross multiply
    338,374.56x = 507,533.04 × 138,637.92
  4. Step 4: Simplify right side
    338,374.56x = 70,363,324,996.88
  5. Step 5: Solve for x
    x = 70,363,324,996.88/338,374.56
  6. Step 6: Final answer
    x = 207,945.08

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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.