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Finding the Fourth Proportional to 208,124.01, 287,180.25 and 126,409.77

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Solution

The fourth proportional to 208,124.01, 287,180.25 and 126,409.77 is: 174,426.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,124.01 : 287,180.25 = 126,409.77 : x
  2. Step 2: Convert to fraction form
    208,124.01/287,180.25 = 126,409.77/x
  3. Step 3: Cross multiply
    208,124.01x = 287,180.25 × 126,409.77
  4. Step 4: Simplify right side
    208,124.01x = 36,302,389,351.04
  5. Step 5: Solve for x
    x = 36,302,389,351.04/208,124.01
  6. Step 6: Final answer
    x = 174,426.72

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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.