Home / 208,300.28-287,450.98-112,806.14

Finding the Fourth Proportional to 208,300.28, 287,450.98 and 112,806.14

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Solution

The fourth proportional to 208,300.28, 287,450.98 and 112,806.14 is: 155,670.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,300.28 : 287,450.98 = 112,806.14 : x
  2. Step 2: Convert to fraction form
    208,300.28/287,450.98 = 112,806.14/x
  3. Step 3: Cross multiply
    208,300.28x = 287,450.98 × 112,806.14
  4. Step 4: Simplify right side
    208,300.28x = 32,426,233,773.75
  5. Step 5: Solve for x
    x = 32,426,233,773.75/208,300.28
  6. Step 6: Final answer
    x = 155,670.62

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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.