Home / 415,028.10-621,108.55-248,935.30

Finding the Fourth Proportional to 415,028.10, 621,108.55 and 248,935.30

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Solution

The fourth proportional to 415,028.10, 621,108.55 and 248,935.30 is: 372,543.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,028.10 : 621,108.55 = 248,935.30 : x
  2. Step 2: Convert to fraction form
    415,028.10/621,108.55 = 248,935.30/x
  3. Step 3: Cross multiply
    415,028.10x = 621,108.55 × 248,935.30
  4. Step 4: Simplify right side
    415,028.10x = 154,615,843,226.82
  5. Step 5: Solve for x
    x = 154,615,843,226.82/415,028.10
  6. Step 6: Final answer
    x = 372,543.07

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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.