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Finding the Fourth Proportional to 295,890.49, 443,838.98 and 85,530.25

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Solution

The fourth proportional to 295,890.49, 443,838.98 and 85,530.25 is: 128,296.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,890.49 : 443,838.98 = 85,530.25 : x
  2. Step 2: Convert to fraction form
    295,890.49/443,838.98 = 85,530.25/x
  3. Step 3: Cross multiply
    295,890.49x = 443,838.98 × 85,530.25
  4. Step 4: Simplify right side
    295,890.49x = 37,961,658,919.15
  5. Step 5: Solve for x
    x = 37,961,658,919.15/295,890.49
  6. Step 6: Final answer
    x = 128,296.31

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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.