Home / 219,066.18-328,601.88-76,915.02

Finding the Fourth Proportional to 219,066.18, 328,601.88 and 76,915.02

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Solution

The fourth proportional to 219,066.18, 328,601.88 and 76,915.02 is: 115,373.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,066.18 : 328,601.88 = 76,915.02 : x
  2. Step 2: Convert to fraction form
    219,066.18/328,601.88 = 76,915.02/x
  3. Step 3: Cross multiply
    219,066.18x = 328,601.88 × 76,915.02
  4. Step 4: Simplify right side
    219,066.18x = 25,274,420,172.24
  5. Step 5: Solve for x
    x = 25,274,420,172.24/219,066.18
  6. Step 6: Final answer
    x = 115,373.45

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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.