Home / 208,427.48-287,631.24-112,934.87

Finding the Fourth Proportional to 208,427.48, 287,631.24 and 112,934.87

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Solution

The fourth proportional to 208,427.48, 287,631.24 and 112,934.87 is: 155,850.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,427.48 : 287,631.24 = 112,934.87 : x
  2. Step 2: Convert to fraction form
    208,427.48/287,631.24 = 112,934.87/x
  3. Step 3: Cross multiply
    208,427.48x = 287,631.24 × 112,934.87
  4. Step 4: Simplify right side
    208,427.48x = 32,483,596,697.34
  5. Step 5: Solve for x
    x = 32,483,596,697.34/208,427.48
  6. Step 6: Final answer
    x = 155,850.83

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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.