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Finding the Fourth Proportional to 210,321.66, 290,239.95 and 119,675.58

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Solution

The fourth proportional to 210,321.66, 290,239.95 and 119,675.58 is: 165,150.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,321.66 : 290,239.95 = 119,675.58 : x
  2. Step 2: Convert to fraction form
    210,321.66/290,239.95 = 119,675.58/x
  3. Step 3: Cross multiply
    210,321.66x = 290,239.95 × 119,675.58
  4. Step 4: Simplify right side
    210,321.66x = 34,734,634,355.42
  5. Step 5: Solve for x
    x = 34,734,634,355.42/210,321.66
  6. Step 6: Final answer
    x = 165,150.06

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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.