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Finding the Fourth Proportional to 210,525.88, 290,525.79 and 113,729.77

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Solution

The fourth proportional to 210,525.88, 290,525.79 and 113,729.77 is: 156,947.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,525.88 : 290,525.79 = 113,729.77 : x
  2. Step 2: Convert to fraction form
    210,525.88/290,525.79 = 113,729.77/x
  3. Step 3: Cross multiply
    210,525.88x = 290,525.79 × 113,729.77
  4. Step 4: Simplify right side
    210,525.88x = 33,041,431,275.77
  5. Step 5: Solve for x
    x = 33,041,431,275.77/210,525.88
  6. Step 6: Final answer
    x = 156,947.12

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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.