Home / 208,426.90-287,629.38-112,933.57

Finding the Fourth Proportional to 208,426.90, 287,629.38 and 112,933.57

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Solution

The fourth proportional to 208,426.90, 287,629.38 and 112,933.57 is: 155,848.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,426.90 : 287,629.38 = 112,933.57 : x
  2. Step 2: Convert to fraction form
    208,426.90/287,629.38 = 112,933.57/x
  3. Step 3: Cross multiply
    208,426.90x = 287,629.38 × 112,933.57
  4. Step 4: Simplify right side
    208,426.90x = 32,483,012,720.29
  5. Step 5: Solve for x
    x = 32,483,012,720.29/208,426.90
  6. Step 6: Final answer
    x = 155,848.47

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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.