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Finding the Fourth Proportional to 208,352.87, 287,526.68 and 112,859.94

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Solution

The fourth proportional to 208,352.87, 287,526.68 and 112,859.94 is: 155,746.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,352.87 : 287,526.68 = 112,859.94 : x
  2. Step 2: Convert to fraction form
    208,352.87/287,526.68 = 112,859.94/x
  3. Step 3: Cross multiply
    208,352.87x = 287,526.68 × 112,859.94
  4. Step 4: Simplify right side
    208,352.87x = 32,450,243,853.20
  5. Step 5: Solve for x
    x = 32,450,243,853.20/208,352.87
  6. Step 6: Final answer
    x = 155,746.57

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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.