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Finding the Fourth Proportional to 212,880.74, 293,795.13 and 122,248.58

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Solution

The fourth proportional to 212,880.74, 293,795.13 and 122,248.58 is: 168,714.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,880.74 : 293,795.13 = 122,248.58 : x
  2. Step 2: Convert to fraction form
    212,880.74/293,795.13 = 122,248.58/x
  3. Step 3: Cross multiply
    212,880.74x = 293,795.13 × 122,248.58
  4. Step 4: Simplify right side
    212,880.74x = 35,916,037,453.42
  5. Step 5: Solve for x
    x = 35,916,037,453.42/212,880.74
  6. Step 6: Final answer
    x = 168,714.36

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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.