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Finding the Fourth Proportional to 210,656.76, 290,672.73 and 120,014.52

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Solution

The fourth proportional to 210,656.76, 290,672.73 and 120,014.52 is: 165,600.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,656.76 : 290,672.73 = 120,014.52 : x
  2. Step 2: Convert to fraction form
    210,656.76/290,672.73 = 120,014.52/x
  3. Step 3: Cross multiply
    210,656.76x = 290,672.73 × 120,014.52
  4. Step 4: Simplify right side
    210,656.76x = 34,884,948,168.04
  5. Step 5: Solve for x
    x = 34,884,948,168.04/210,656.76
  6. Step 6: Final answer
    x = 165,600.90

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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.