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Finding the Fourth Proportional to 346,679.60, 520,069.80 and 146,999.60

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Solution

The fourth proportional to 346,679.60, 520,069.80 and 146,999.60 is: 220,520.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,679.60 : 520,069.80 = 146,999.60 : x
  2. Step 2: Convert to fraction form
    346,679.60/520,069.80 = 146,999.60/x
  3. Step 3: Cross multiply
    346,679.60x = 520,069.80 × 146,999.60
  4. Step 4: Simplify right side
    346,679.60x = 76,450,052,572.08
  5. Step 5: Solve for x
    x = 76,450,052,572.08/346,679.60
  6. Step 6: Final answer
    x = 220,520.77

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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.