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Finding the Fourth Proportional to 217,303.68, 300,008.14 and 136,800.20

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Solution

The fourth proportional to 217,303.68, 300,008.14 and 136,800.20 is: 188,865.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,303.68 : 300,008.14 = 136,800.20 : x
  2. Step 2: Convert to fraction form
    217,303.68/300,008.14 = 136,800.20/x
  3. Step 3: Cross multiply
    217,303.68x = 300,008.14 × 136,800.20
  4. Step 4: Simplify right side
    217,303.68x = 41,041,173,553.63
  5. Step 5: Solve for x
    x = 41,041,173,553.63/217,303.68
  6. Step 6: Final answer
    x = 188,865.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.