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Finding the Fourth Proportional to 347,018.90, 478,882.81 and 194,055.34

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Solution

The fourth proportional to 347,018.90, 478,882.81 and 194,055.34 is: 267,794.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,018.90 : 478,882.81 = 194,055.34 : x
  2. Step 2: Convert to fraction form
    347,018.90/478,882.81 = 194,055.34/x
  3. Step 3: Cross multiply
    347,018.90x = 478,882.81 × 194,055.34
  4. Step 4: Simplify right side
    347,018.90x = 92,929,764,961.48
  5. Step 5: Solve for x
    x = 92,929,764,961.48/347,018.90
  6. Step 6: Final answer
    x = 267,794.53

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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.