Home / 219,320.40-328,543.20-152,835.60

Finding the Fourth Proportional to 219,320.40, 328,543.20 and 152,835.60

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Solution

The fourth proportional to 219,320.40, 328,543.20 and 152,835.60 is: 228,948.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,320.40 : 328,543.20 = 152,835.60 : x
  2. Step 2: Convert to fraction form
    219,320.40/328,543.20 = 152,835.60/x
  3. Step 3: Cross multiply
    219,320.40x = 328,543.20 × 152,835.60
  4. Step 4: Simplify right side
    219,320.40x = 50,213,097,097.92
  5. Step 5: Solve for x
    x = 50,213,097,097.92/219,320.40
  6. Step 6: Final answer
    x = 228,948.59

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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.