Home / 219,416.40-328,860-100,925.28

Finding the Fourth Proportional to 219,416.40, 328,860 and 100,925.28

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Solution

The fourth proportional to 219,416.40, 328,860 and 100,925.28 is: 151,266.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,416.40 : 328,860 = 100,925.28 : x
  2. Step 2: Convert to fraction form
    219,416.40/328,860 = 100,925.28/x
  3. Step 3: Cross multiply
    219,416.40x = 328,860 × 100,925.28
  4. Step 4: Simplify right side
    219,416.40x = 33,190,287,580.80
  5. Step 5: Solve for x
    x = 33,190,287,580.80/219,416.40
  6. Step 6: Final answer
    x = 151,266.21

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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.