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Finding the Fourth Proportional to 287,614.45, 430,929.60 and 182,310.40

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Solution

The fourth proportional to 287,614.45, 430,929.60 and 182,310.40 is: 273,153.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,614.45 : 430,929.60 = 182,310.40 : x
  2. Step 2: Convert to fraction form
    287,614.45/430,929.60 = 182,310.40/x
  3. Step 3: Cross multiply
    287,614.45x = 430,929.60 × 182,310.40
  4. Step 4: Simplify right side
    287,614.45x = 78,562,947,747.84
  5. Step 5: Solve for x
    x = 78,562,947,747.84/287,614.45
  6. Step 6: Final answer
    x = 273,153.69

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1.5x scale

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.