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Finding the Fourth Proportional to 210,173.12, 290,045.30 and 119,542.12

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Solution

The fourth proportional to 210,173.12, 290,045.30 and 119,542.12 is: 164,971.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,173.12 : 290,045.30 = 119,542.12 : x
  2. Step 2: Convert to fraction form
    210,173.12/290,045.30 = 119,542.12/x
  3. Step 3: Cross multiply
    210,173.12x = 290,045.30 × 119,542.12
  4. Step 4: Simplify right side
    210,173.12x = 34,672,629,887.18
  5. Step 5: Solve for x
    x = 34,672,629,887.18/210,173.12
  6. Step 6: Final answer
    x = 164,971.76

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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.