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Finding the Fourth Proportional to 202,357.11, 279,271.81 and 151,281.39

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Solution

The fourth proportional to 202,357.11, 279,271.81 and 151,281.39 is: 208,782.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,357.11 : 279,271.81 = 151,281.39 : x
  2. Step 2: Convert to fraction form
    202,357.11/279,271.81 = 151,281.39/x
  3. Step 3: Cross multiply
    202,357.11x = 279,271.81 × 151,281.39
  4. Step 4: Simplify right side
    202,357.11x = 42,248,627,604.62
  5. Step 5: Solve for x
    x = 42,248,627,604.62/202,357.11
  6. Step 6: Final answer
    x = 208,782.52

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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.