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Finding the Fourth Proportional to 346,707.40, 520,061.10 and 204,406.60

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Solution

The fourth proportional to 346,707.40, 520,061.10 and 204,406.60 is: 306,609.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,707.40 : 520,061.10 = 204,406.60 : x
  2. Step 2: Convert to fraction form
    346,707.40/520,061.10 = 204,406.60/x
  3. Step 3: Cross multiply
    346,707.40x = 520,061.10 × 204,406.60
  4. Step 4: Simplify right side
    346,707.40x = 106,303,921,243.26
  5. Step 5: Solve for x
    x = 106,303,921,243.26/346,707.40
  6. Step 6: Final answer
    x = 306,609.90

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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.