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Finding the Fourth Proportional to 190,672.83, 285,897.09 and 72,352.49

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Solution

The fourth proportional to 190,672.83, 285,897.09 and 72,352.49 is: 108,486.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,672.83 : 285,897.09 = 72,352.49 : x
  2. Step 2: Convert to fraction form
    190,672.83/285,897.09 = 72,352.49/x
  3. Step 3: Cross multiply
    190,672.83x = 285,897.09 × 72,352.49
  4. Step 4: Simplify right side
    190,672.83x = 20,685,366,345.25
  5. Step 5: Solve for x
    x = 20,685,366,345.25/190,672.83
  6. Step 6: Final answer
    x = 108,486.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.