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Finding the Fourth Proportional to 212,337.75, 293,038.22 and 121,708.82

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Solution

The fourth proportional to 212,337.75, 293,038.22 and 121,708.82 is: 167,965.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,337.75 : 293,038.22 = 121,708.82 : x
  2. Step 2: Convert to fraction form
    212,337.75/293,038.22 = 121,708.82/x
  3. Step 3: Cross multiply
    212,337.75x = 293,038.22 × 121,708.82
  4. Step 4: Simplify right side
    212,337.75x = 35,665,334,505.91
  5. Step 5: Solve for x
    x = 35,665,334,505.91/212,337.75
  6. Step 6: Final answer
    x = 167,965.11

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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.