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Finding the Fourth Proportional to 289,796.34, 434,697.54 and 79,434.30

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Solution

The fourth proportional to 289,796.34, 434,697.54 and 79,434.30 is: 119,152.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,796.34 : 434,697.54 = 79,434.30 : x
  2. Step 2: Convert to fraction form
    289,796.34/434,697.54 = 79,434.30/x
  3. Step 3: Cross multiply
    289,796.34x = 434,697.54 × 79,434.30
  4. Step 4: Simplify right side
    289,796.34x = 34,529,894,801.62
  5. Step 5: Solve for x
    x = 34,529,894,801.62/289,796.34
  6. Step 6: Final answer
    x = 119,152.28

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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.