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Finding the Fourth Proportional to 361,602.45, 499,015.89 and 208,672.38

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Solution

The fourth proportional to 361,602.45, 499,015.89 and 208,672.38 is: 287,970.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,602.45 : 499,015.89 = 208,672.38 : x
  2. Step 2: Convert to fraction form
    361,602.45/499,015.89 = 208,672.38/x
  3. Step 3: Cross multiply
    361,602.45x = 499,015.89 × 208,672.38
  4. Step 4: Simplify right side
    361,602.45x = 104,130,833,424.12
  5. Step 5: Solve for x
    x = 104,130,833,424.12/361,602.45
  6. Step 6: Final answer
    x = 287,970.49

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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.