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Finding the Fourth Proportional to 210,525.63, 290,525.45 and 113,729.52

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Solution

The fourth proportional to 210,525.63, 290,525.45 and 113,729.52 is: 156,946.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,525.63 : 290,525.45 = 113,729.52 : x
  2. Step 2: Convert to fraction form
    210,525.63/290,525.45 = 113,729.52/x
  3. Step 3: Cross multiply
    210,525.63x = 290,525.45 × 113,729.52
  4. Step 4: Simplify right side
    210,525.63x = 33,041,319,407.64
  5. Step 5: Solve for x
    x = 33,041,319,407.64/210,525.63
  6. Step 6: Final answer
    x = 156,946.78

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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.