Home / 208,290.45-287,439.39-112,794.96

Finding the Fourth Proportional to 208,290.45, 287,439.39 and 112,794.96

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Solution

The fourth proportional to 208,290.45, 287,439.39 and 112,794.96 is: 155,656.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,290.45 : 287,439.39 = 112,794.96 : x
  2. Step 2: Convert to fraction form
    208,290.45/287,439.39 = 112,794.96/x
  3. Step 3: Cross multiply
    208,290.45x = 287,439.39 × 112,794.96
  4. Step 4: Simplify right side
    208,290.45x = 32,421,714,497.47
  5. Step 5: Solve for x
    x = 32,421,714,497.47/208,290.45
  6. Step 6: Final answer
    x = 155,656.27

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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.