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Finding the Fourth Proportional to 208,014.33, 287,080.71 and 127,495.38

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Solution

The fourth proportional to 208,014.33, 287,080.71 and 127,495.38 is: 175,956.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,014.33 : 287,080.71 = 127,495.38 : x
  2. Step 2: Convert to fraction form
    208,014.33/287,080.71 = 127,495.38/x
  3. Step 3: Cross multiply
    208,014.33x = 287,080.71 × 127,495.38
  4. Step 4: Simplify right side
    208,014.33x = 36,601,464,212.12
  5. Step 5: Solve for x
    x = 36,601,464,212.12/208,014.33
  6. Step 6: Final answer
    x = 175,956.46

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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.