Home / 302,476.78-453,680.58-80,878.06

Finding the Fourth Proportional to 302,476.78, 453,680.58 and 80,878.06

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Solution

The fourth proportional to 302,476.78, 453,680.58 and 80,878.06 is: 121,307.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,476.78 : 453,680.58 = 80,878.06 : x
  2. Step 2: Convert to fraction form
    302,476.78/453,680.58 = 80,878.06/x
  3. Step 3: Cross multiply
    302,476.78x = 453,680.58 × 80,878.06
  4. Step 4: Simplify right side
    302,476.78x = 36,692,805,170.07
  5. Step 5: Solve for x
    x = 36,692,805,170.07/302,476.78
  6. Step 6: Final answer
    x = 121,307.84

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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.