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Finding the Fourth Proportional to 208,159.52, 287,262.24 and 112,668.26

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Solution

The fourth proportional to 208,159.52, 287,262.24 and 112,668.26 is: 155,483.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,159.52 : 287,262.24 = 112,668.26 : x
  2. Step 2: Convert to fraction form
    208,159.52/287,262.24 = 112,668.26/x
  3. Step 3: Cross multiply
    208,159.52x = 287,262.24 × 112,668.26
  4. Step 4: Simplify right side
    208,159.52x = 32,365,336,744.50
  5. Step 5: Solve for x
    x = 32,365,336,744.50/208,159.52
  6. Step 6: Final answer
    x = 155,483.34

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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.