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Finding the Fourth Proportional to 243,389.88, 365,213.34 and 172,768.68

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Solution

The fourth proportional to 243,389.88, 365,213.34 and 172,768.68 is: 259,244.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,389.88 : 365,213.34 = 172,768.68 : x
  2. Step 2: Convert to fraction form
    243,389.88/365,213.34 = 172,768.68/x
  3. Step 3: Cross multiply
    243,389.88x = 365,213.34 × 172,768.68
  4. Step 4: Simplify right side
    243,389.88x = 63,097,426,670.19
  5. Step 5: Solve for x
    x = 63,097,426,670.19/243,389.88
  6. Step 6: Final answer
    x = 259,244.25

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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.