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Finding the Fourth Proportional to 289,931.29, 434,910.62 and 239,236.29

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Solution

The fourth proportional to 289,931.29, 434,910.62 and 239,236.29 is: 358,865.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,931.29 : 434,910.62 = 239,236.29 : x
  2. Step 2: Convert to fraction form
    289,931.29/434,910.62 = 239,236.29/x
  3. Step 3: Cross multiply
    289,931.29x = 434,910.62 × 239,236.29
  4. Step 4: Simplify right side
    289,931.29x = 104,046,403,808.49
  5. Step 5: Solve for x
    x = 104,046,403,808.49/289,931.29
  6. Step 6: Final answer
    x = 358,865.73

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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.