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Finding the Fourth Proportional to 210,683.48, 290,737.62 and 124,646.90

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Solution

The fourth proportional to 210,683.48, 290,737.62 and 124,646.90 is: 172,009.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,683.48 : 290,737.62 = 124,646.90 : x
  2. Step 2: Convert to fraction form
    210,683.48/290,737.62 = 124,646.90/x
  3. Step 3: Cross multiply
    210,683.48x = 290,737.62 × 124,646.90
  4. Step 4: Simplify right side
    210,683.48x = 36,239,543,046.38
  5. Step 5: Solve for x
    x = 36,239,543,046.38/210,683.48
  6. Step 6: Final answer
    x = 172,009.42

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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.