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Finding the Fourth Proportional to 208,426.83, 287,629.28 and 112,933.45

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Solution

The fourth proportional to 208,426.83, 287,629.28 and 112,933.45 is: 155,848.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,426.83 : 287,629.28 = 112,933.45 : x
  2. Step 2: Convert to fraction form
    208,426.83/287,629.28 = 112,933.45/x
  3. Step 3: Cross multiply
    208,426.83x = 287,629.28 × 112,933.45
  4. Step 4: Simplify right side
    208,426.83x = 32,482,966,911.42
  5. Step 5: Solve for x
    x = 32,482,966,911.42/208,426.83
  6. Step 6: Final answer
    x = 155,848.30

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.