Home / 289,227.44-433,828.32-78,865.40

Finding the Fourth Proportional to 289,227.44, 433,828.32 and 78,865.40

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Solution

The fourth proportional to 289,227.44, 433,828.32 and 78,865.40 is: 118,294.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,227.44 : 433,828.32 = 78,865.40 : x
  2. Step 2: Convert to fraction form
    289,227.44/433,828.32 = 78,865.40/x
  3. Step 3: Cross multiply
    289,227.44x = 433,828.32 × 78,865.40
  4. Step 4: Simplify right side
    289,227.44x = 34,214,043,988.13
  5. Step 5: Solve for x
    x = 34,214,043,988.13/289,227.44
  6. Step 6: Final answer
    x = 118,294.60

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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.