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Finding the Fourth Proportional to 208,592.32, 287,859.60 and 122,554.86

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Solution

The fourth proportional to 208,592.32, 287,859.60 and 122,554.86 is: 169,127.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,592.32 : 287,859.60 = 122,554.86 : x
  2. Step 2: Convert to fraction form
    208,592.32/287,859.60 = 122,554.86/x
  3. Step 3: Cross multiply
    208,592.32x = 287,859.60 × 122,554.86
  4. Step 4: Simplify right side
    208,592.32x = 35,278,592,977.66
  5. Step 5: Solve for x
    x = 35,278,592,977.66/208,592.32
  6. Step 6: Final answer
    x = 169,127.00

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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.