Home / 219,281.18-328,988.59-92,855.57

Finding the Fourth Proportional to 219,281.18, 328,988.59 and 92,855.57

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Solution

The fourth proportional to 219,281.18, 328,988.59 and 92,855.57 is: 139,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,281.18 : 328,988.59 = 92,855.57 : x
  2. Step 2: Convert to fraction form
    219,281.18/328,988.59 = 92,855.57/x
  3. Step 3: Cross multiply
    219,281.18x = 328,988.59 × 92,855.57
  4. Step 4: Simplify right side
    219,281.18x = 30,548,421,170.86
  5. Step 5: Solve for x
    x = 30,548,421,170.86/219,281.18
  6. Step 6: Final answer
    x = 139,311.64

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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.