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Finding the Fourth Proportional to 208,504.13, 287,734.07 and 113,008.37

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Solution

The fourth proportional to 208,504.13, 287,734.07 and 113,008.37 is: 155,950.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,504.13 : 287,734.07 = 113,008.37 : x
  2. Step 2: Convert to fraction form
    208,504.13/287,734.07 = 113,008.37/x
  3. Step 3: Cross multiply
    208,504.13x = 287,734.07 × 113,008.37
  4. Step 4: Simplify right side
    208,504.13x = 32,516,357,088.02
  5. Step 5: Solve for x
    x = 32,516,357,088.02/208,504.13
  6. Step 6: Final answer
    x = 155,950.67

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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.