Home / 285,681.07-428,099.28-269,705.08

Finding the Fourth Proportional to 285,681.07, 428,099.28 and 269,705.08

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Solution

The fourth proportional to 285,681.07, 428,099.28 and 269,705.08 is: 404,158.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,681.07 : 428,099.28 = 269,705.08 : x
  2. Step 2: Convert to fraction form
    285,681.07/428,099.28 = 269,705.08/x
  3. Step 3: Cross multiply
    285,681.07x = 428,099.28 × 269,705.08
  4. Step 4: Simplify right side
    285,681.07x = 115,460,550,560.34
  5. Step 5: Solve for x
    x = 115,460,550,560.34/285,681.07
  6. Step 6: Final answer
    x = 404,158.91

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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.