Home / 401,273.09-553,779.45-238,026.40

Finding the Fourth Proportional to 401,273.09, 553,779.45 and 238,026.40

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Solution

The fourth proportional to 401,273.09, 553,779.45 and 238,026.40 is: 328,489.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,273.09 : 553,779.45 = 238,026.40 : x
  2. Step 2: Convert to fraction form
    401,273.09/553,779.45 = 238,026.40/x
  3. Step 3: Cross multiply
    401,273.09x = 553,779.45 × 238,026.40
  4. Step 4: Simplify right side
    401,273.09x = 131,814,127,493.03
  5. Step 5: Solve for x
    x = 131,814,127,493.03/401,273.09
  6. Step 6: Final answer
    x = 328,489.83

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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.