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Finding the Fourth Proportional to 347,433.09, 520,795.59 and 147,626.07

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Solution

The fourth proportional to 347,433.09, 520,795.59 and 147,626.07 is: 221,288.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,433.09 : 520,795.59 = 147,626.07 : x
  2. Step 2: Convert to fraction form
    347,433.09/520,795.59 = 147,626.07/x
  3. Step 3: Cross multiply
    347,433.09x = 520,795.59 × 147,626.07
  4. Step 4: Simplify right side
    347,433.09x = 76,883,006,225.03
  5. Step 5: Solve for x
    x = 76,883,006,225.03/347,433.09
  6. Step 6: Final answer
    x = 221,288.67

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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.