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Finding the Fourth Proportional to 208,334.70, 287,501.40 and 112,841.64

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Solution

The fourth proportional to 208,334.70, 287,501.40 and 112,841.64 is: 155,721.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,334.70 : 287,501.40 = 112,841.64 : x
  2. Step 2: Convert to fraction form
    208,334.70/287,501.40 = 112,841.64/x
  3. Step 3: Cross multiply
    208,334.70x = 287,501.40 × 112,841.64
  4. Step 4: Simplify right side
    208,334.70x = 32,442,129,478.30
  5. Step 5: Solve for x
    x = 32,442,129,478.30/208,334.70
  6. Step 6: Final answer
    x = 155,721.20

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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.