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Finding the Fourth Proportional to 352,399.61, 486,311.45 and 191,254.67

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Solution

The fourth proportional to 352,399.61, 486,311.45 and 191,254.67 is: 263,931.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,399.61 : 486,311.45 = 191,254.67 : x
  2. Step 2: Convert to fraction form
    352,399.61/486,311.45 = 191,254.67/x
  3. Step 3: Cross multiply
    352,399.61x = 486,311.45 × 191,254.67
  4. Step 4: Simplify right side
    352,399.61x = 93,009,332,499.14
  5. Step 5: Solve for x
    x = 93,009,332,499.14/352,399.61
  6. Step 6: Final answer
    x = 263,931.43

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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.