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Finding the Fourth Proportional to 262,223.01, 393,336.81 and 84,730.05

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Solution

The fourth proportional to 262,223.01, 393,336.81 and 84,730.05 is: 127,095.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,223.01 : 393,336.81 = 84,730.05 : x
  2. Step 2: Convert to fraction form
    262,223.01/393,336.81 = 84,730.05/x
  3. Step 3: Cross multiply
    262,223.01x = 393,336.81 × 84,730.05
  4. Step 4: Simplify right side
    262,223.01x = 33,327,447,578.14
  5. Step 5: Solve for x
    x = 33,327,447,578.14/262,223.01
  6. Step 6: Final answer
    x = 127,095.82

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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.