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Finding the Fourth Proportional to 208,296.83, 287,448.19 and 112,801.34

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Solution

The fourth proportional to 208,296.83, 287,448.19 and 112,801.34 is: 155,665.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,296.83 : 287,448.19 = 112,801.34 : x
  2. Step 2: Convert to fraction form
    208,296.83/287,448.19 = 112,801.34/x
  3. Step 3: Cross multiply
    208,296.83x = 287,448.19 × 112,801.34
  4. Step 4: Simplify right side
    208,296.83x = 32,424,539,293.33
  5. Step 5: Solve for x
    x = 32,424,539,293.33/208,296.83
  6. Step 6: Final answer
    x = 155,665.07

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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.