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Finding the Fourth Proportional to 243,704.16, 336,349.80 and 148,240.80

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Solution

The fourth proportional to 243,704.16, 336,349.80 and 148,240.80 is: 204,595.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,704.16 : 336,349.80 = 148,240.80 : x
  2. Step 2: Convert to fraction form
    243,704.16/336,349.80 = 148,240.80/x
  3. Step 3: Cross multiply
    243,704.16x = 336,349.80 × 148,240.80
  4. Step 4: Simplify right side
    243,704.16x = 49,860,763,431.84
  5. Step 5: Solve for x
    x = 49,860,763,431.84/243,704.16
  6. Step 6: Final answer
    x = 204,595.45

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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.