Home / 208,117.56-287,202.47-112,624.27

Finding the Fourth Proportional to 208,117.56, 287,202.47 and 112,624.27

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Solution

The fourth proportional to 208,117.56, 287,202.47 and 112,624.27 is: 155,421.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,117.56 : 287,202.47 = 112,624.27 : x
  2. Step 2: Convert to fraction form
    208,117.56/287,202.47 = 112,624.27/x
  3. Step 3: Cross multiply
    208,117.56x = 287,202.47 × 112,624.27
  4. Step 4: Simplify right side
    208,117.56x = 32,345,967,244.82
  5. Step 5: Solve for x
    x = 32,345,967,244.82/208,117.56
  6. Step 6: Final answer
    x = 155,421.61

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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.