Home / 281,681.28-422,915.04-268,820.64

Finding the Fourth Proportional to 281,681.28, 422,915.04 and 268,820.64

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Solution

The fourth proportional to 281,681.28, 422,915.04 and 268,820.64 is: 403,606.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,681.28 : 422,915.04 = 268,820.64 : x
  2. Step 2: Convert to fraction form
    281,681.28/422,915.04 = 268,820.64/x
  3. Step 3: Cross multiply
    281,681.28x = 422,915.04 × 268,820.64
  4. Step 4: Simplify right side
    281,681.28x = 113,688,291,718.43
  5. Step 5: Solve for x
    x = 113,688,291,718.43/281,681.28
  6. Step 6: Final answer
    x = 403,606.13

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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.