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Finding the Fourth Proportional to 362,139.59, 499,814.48 and 209,150.28

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Solution

The fourth proportional to 362,139.59, 499,814.48 and 209,150.28 is: 288,663.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,139.59 : 499,814.48 = 209,150.28 : x
  2. Step 2: Convert to fraction form
    362,139.59/499,814.48 = 209,150.28/x
  3. Step 3: Cross multiply
    362,139.59x = 499,814.48 × 209,150.28
  4. Step 4: Simplify right side
    362,139.59x = 104,536,340,212.47
  5. Step 5: Solve for x
    x = 104,536,340,212.47/362,139.59
  6. Step 6: Final answer
    x = 288,663.11

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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.