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Finding the Fourth Proportional to 289,599.45, 434,392.86 and 79,237.38

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Solution

The fourth proportional to 289,599.45, 434,392.86 and 79,237.38 is: 118,854.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,599.45 : 434,392.86 = 79,237.38 : x
  2. Step 2: Convert to fraction form
    289,599.45/434,392.86 = 79,237.38/x
  3. Step 3: Cross multiply
    289,599.45x = 434,392.86 × 79,237.38
  4. Step 4: Simplify right side
    289,599.45x = 34,420,152,117.11
  5. Step 5: Solve for x
    x = 34,420,152,117.11/289,599.45
  6. Step 6: Final answer
    x = 118,854.34

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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.