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Finding the Fourth Proportional to 243,843.90, 365,728.89 and 66,364.74

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Solution

The fourth proportional to 243,843.90, 365,728.89 and 66,364.74 is: 99,537.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,843.90 : 365,728.89 = 66,364.74 : x
  2. Step 2: Convert to fraction form
    243,843.90/365,728.89 = 66,364.74/x
  3. Step 3: Cross multiply
    243,843.90x = 365,728.89 × 66,364.74
  4. Step 4: Simplify right side
    243,843.90x = 24,271,502,695.34
  5. Step 5: Solve for x
    x = 24,271,502,695.34/243,843.90
  6. Step 6: Final answer
    x = 99,537.05

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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.