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Finding the Fourth Proportional to 152,809.76, 210,852.84 and 88,268.76

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Solution

The fourth proportional to 152,809.76, 210,852.84 and 88,268.76 is: 121,796.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,809.76 : 210,852.84 = 88,268.76 : x
  2. Step 2: Convert to fraction form
    152,809.76/210,852.84 = 88,268.76/x
  3. Step 3: Cross multiply
    152,809.76x = 210,852.84 × 88,268.76
  4. Step 4: Simplify right side
    152,809.76x = 18,611,718,729.28
  5. Step 5: Solve for x
    x = 18,611,718,729.28/152,809.76
  6. Step 6: Final answer
    x = 121,796.66

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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.