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Finding the Fourth Proportional to 208,360.24, 287,538.48 and 112,866.90

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Solution

The fourth proportional to 208,360.24, 287,538.48 and 112,866.90 is: 155,757.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,360.24 : 287,538.48 = 112,866.90 : x
  2. Step 2: Convert to fraction form
    208,360.24/287,538.48 = 112,866.90/x
  3. Step 3: Cross multiply
    208,360.24x = 287,538.48 × 112,866.90
  4. Step 4: Simplify right side
    208,360.24x = 32,453,576,868.31
  5. Step 5: Solve for x
    x = 32,453,576,868.31/208,360.24
  6. Step 6: Final answer
    x = 155,757.05

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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.