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Finding the Fourth Proportional to 213,073.80, 294,056.10 and 122,459.10

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Solution

The fourth proportional to 213,073.80, 294,056.10 and 122,459.10 is: 169,001.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,073.80 : 294,056.10 = 122,459.10 : x
  2. Step 2: Convert to fraction form
    213,073.80/294,056.10 = 122,459.10/x
  3. Step 3: Cross multiply
    213,073.80x = 294,056.10 × 122,459.10
  4. Step 4: Simplify right side
    213,073.80x = 36,009,845,355.51
  5. Step 5: Solve for x
    x = 36,009,845,355.51/213,073.80
  6. Step 6: Final answer
    x = 169,001.75

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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.