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Finding the Fourth Proportional to 292,081.80, 438,122.70 and 165,673.20

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Solution

The fourth proportional to 292,081.80, 438,122.70 and 165,673.20 is: 248,509.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,081.80 : 438,122.70 = 165,673.20 : x
  2. Step 2: Convert to fraction form
    292,081.80/438,122.70 = 165,673.20/x
  3. Step 3: Cross multiply
    292,081.80x = 438,122.70 × 165,673.20
  4. Step 4: Simplify right side
    292,081.80x = 72,585,189,701.64
  5. Step 5: Solve for x
    x = 72,585,189,701.64/292,081.80
  6. Step 6: Final answer
    x = 248,509.80

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