Home / 403,869.12-605,026.56-225,836.16

Finding the Fourth Proportional to 403,869.12, 605,026.56 and 225,836.16

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Solution

The fourth proportional to 403,869.12, 605,026.56 and 225,836.16 is: 338,319.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,869.12 : 605,026.56 = 225,836.16 : x
  2. Step 2: Convert to fraction form
    403,869.12/605,026.56 = 225,836.16/x
  3. Step 3: Cross multiply
    403,869.12x = 605,026.56 × 225,836.16
  4. Step 4: Simplify right side
    403,869.12x = 136,636,875,008.41
  5. Step 5: Solve for x
    x = 136,636,875,008.41/403,869.12
  6. Step 6: Final answer
    x = 338,319.69

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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.