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Finding the Fourth Proportional to 347,998.40, 521,997.60 and 246,521.60

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Solution

The fourth proportional to 347,998.40, 521,997.60 and 246,521.60 is: 369,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,998.40 : 521,997.60 = 246,521.60 : x
  2. Step 2: Convert to fraction form
    347,998.40/521,997.60 = 246,521.60/x
  3. Step 3: Cross multiply
    347,998.40x = 521,997.60 × 246,521.60
  4. Step 4: Simplify right side
    347,998.40x = 128,683,683,548.16
  5. Step 5: Solve for x
    x = 128,683,683,548.16/347,998.40
  6. Step 6: Final answer
    x = 369,782.40

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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.