Home / 219,748.80-328,748.40-190,491.60

Finding the Fourth Proportional to 219,748.80, 328,748.40 and 190,491.60

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Solution

The fourth proportional to 219,748.80, 328,748.40 and 190,491.60 is: 284,979.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,748.80 : 328,748.40 = 190,491.60 : x
  2. Step 2: Convert to fraction form
    219,748.80/328,748.40 = 190,491.60/x
  3. Step 3: Cross multiply
    219,748.80x = 328,748.40 × 190,491.60
  4. Step 4: Simplify right side
    219,748.80x = 62,623,808,713.44
  5. Step 5: Solve for x
    x = 62,623,808,713.44/219,748.80
  6. Step 6: Final answer
    x = 284,979.07

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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.