Home / 253,307.04-379,828.32-126,810.72

Finding the Fourth Proportional to 253,307.04, 379,828.32 and 126,810.72

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Solution

The fourth proportional to 253,307.04, 379,828.32 and 126,810.72 is: 190,149.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,307.04 : 379,828.32 = 126,810.72 : x
  2. Step 2: Convert to fraction form
    253,307.04/379,828.32 = 126,810.72/x
  3. Step 3: Cross multiply
    253,307.04x = 379,828.32 × 126,810.72
  4. Step 4: Simplify right side
    253,307.04x = 48,166,302,735.59
  5. Step 5: Solve for x
    x = 48,166,302,735.59/253,307.04
  6. Step 6: Final answer
    x = 190,149.88

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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.