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Finding the Fourth Proportional to 208,083.99, 287,153.86 and 112,588.59

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Solution

The fourth proportional to 208,083.99, 287,153.86 and 112,588.59 is: 155,371.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,083.99 : 287,153.86 = 112,588.59 : x
  2. Step 2: Convert to fraction form
    208,083.99/287,153.86 = 112,588.59/x
  3. Step 3: Cross multiply
    208,083.99x = 287,153.86 × 112,588.59
  4. Step 4: Simplify right side
    208,083.99x = 32,330,248,210.46
  5. Step 5: Solve for x
    x = 32,330,248,210.46/208,083.99
  6. Step 6: Final answer
    x = 155,371.15

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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.