Home / 208,201.19-287,317.58-112,707.80

Finding the Fourth Proportional to 208,201.19, 287,317.58 and 112,707.80

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Solution

The fourth proportional to 208,201.19, 287,317.58 and 112,707.80 is: 155,536.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,201.19 : 287,317.58 = 112,707.80 : x
  2. Step 2: Convert to fraction form
    208,201.19/287,317.58 = 112,707.80/x
  3. Step 3: Cross multiply
    208,201.19x = 287,317.58 × 112,707.80
  4. Step 4: Simplify right side
    208,201.19x = 32,382,933,670.58
  5. Step 5: Solve for x
    x = 32,382,933,670.58/208,201.19
  6. Step 6: Final answer
    x = 155,536.74

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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.