Home / 319,096.20-478,061.10-194,291.40

Finding the Fourth Proportional to 319,096.20, 478,061.10 and 194,291.40

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Solution

The fourth proportional to 319,096.20, 478,061.10 and 194,291.40 is: 291,082.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,096.20 : 478,061.10 = 194,291.40 : x
  2. Step 2: Convert to fraction form
    319,096.20/478,061.10 = 194,291.40/x
  3. Step 3: Cross multiply
    319,096.20x = 478,061.10 × 194,291.40
  4. Step 4: Simplify right side
    319,096.20x = 92,883,160,404.54
  5. Step 5: Solve for x
    x = 92,883,160,404.54/319,096.20
  6. Step 6: Final answer
    x = 291,082.00

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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.