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Finding the Fourth Proportional to 210,333.92, 290,567.86 and 181,990.40

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Solution

The fourth proportional to 210,333.92, 290,567.86 and 181,990.40 is: 251,412.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,333.92 : 290,567.86 = 181,990.40 : x
  2. Step 2: Convert to fraction form
    210,333.92/290,567.86 = 181,990.40/x
  3. Step 3: Cross multiply
    210,333.92x = 290,567.86 × 181,990.40
  4. Step 4: Simplify right side
    210,333.92x = 52,880,559,160.73
  5. Step 5: Solve for x
    x = 52,880,559,160.73/210,333.92
  6. Step 6: Final answer
    x = 251,412.42

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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.