Home / 272,678.28-408,878.96-204,587.40

Finding the Fourth Proportional to 272,678.28, 408,878.96 and 204,587.40

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Solution

The fourth proportional to 272,678.28, 408,878.96 and 204,587.40 is: 306,777.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,678.28 : 408,878.96 = 204,587.40 : x
  2. Step 2: Convert to fraction form
    272,678.28/408,878.96 = 204,587.40/x
  3. Step 3: Cross multiply
    272,678.28x = 408,878.96 × 204,587.40
  4. Step 4: Simplify right side
    272,678.28x = 83,651,483,341.10
  5. Step 5: Solve for x
    x = 83,651,483,341.10/272,678.28
  6. Step 6: Final answer
    x = 306,777.22

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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.