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Finding the Fourth Proportional to 212,999.43, 293,953.47 and 122,384.73

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Solution

The fourth proportional to 212,999.43, 293,953.47 and 122,384.73 is: 168,899.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,999.43 : 293,953.47 = 122,384.73 : x
  2. Step 2: Convert to fraction form
    212,999.43/293,953.47 = 122,384.73/x
  3. Step 3: Cross multiply
    212,999.43x = 293,953.47 × 122,384.73
  4. Step 4: Simplify right side
    212,999.43x = 35,975,416,058.51
  5. Step 5: Solve for x
    x = 35,975,416,058.51/212,999.43
  6. Step 6: Final answer
    x = 168,899.12

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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.