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Finding the Fourth Proportional to 208,232.04, 287,360.40 and 112,738.80

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Solution

The fourth proportional to 208,232.04, 287,360.40 and 112,738.80 is: 155,579.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,232.04 : 287,360.40 = 112,738.80 : x
  2. Step 2: Convert to fraction form
    208,232.04/287,360.40 = 112,738.80/x
  3. Step 3: Cross multiply
    208,232.04x = 287,360.40 × 112,738.80
  4. Step 4: Simplify right side
    208,232.04x = 32,396,666,663.52
  5. Step 5: Solve for x
    x = 32,396,666,663.52/208,232.04
  6. Step 6: Final answer
    x = 155,579.64

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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.