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Finding the Fourth Proportional to 210,683.42, 290,671.89 and 119,975.07

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Solution

The fourth proportional to 210,683.42, 290,671.89 and 119,975.07 is: 165,525.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,683.42 : 290,671.89 = 119,975.07 : x
  2. Step 2: Convert to fraction form
    210,683.42/290,671.89 = 119,975.07/x
  3. Step 3: Cross multiply
    210,683.42x = 290,671.89 × 119,975.07
  4. Step 4: Simplify right side
    210,683.42x = 34,873,380,349.78
  5. Step 5: Solve for x
    x = 34,873,380,349.78/210,683.42
  6. Step 6: Final answer
    x = 165,525.04

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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.