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Finding the Fourth Proportional to 340,509.60, 509,871.60 and 240,125.76

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Solution

The fourth proportional to 340,509.60, 509,871.60 and 240,125.76 is: 359,559.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,509.60 : 509,871.60 = 240,125.76 : x
  2. Step 2: Convert to fraction form
    340,509.60/509,871.60 = 240,125.76/x
  3. Step 3: Cross multiply
    340,509.60x = 509,871.60 × 240,125.76
  4. Step 4: Simplify right side
    340,509.60x = 122,433,305,452.42
  5. Step 5: Solve for x
    x = 122,433,305,452.42/340,509.60
  6. Step 6: Final answer
    x = 359,559.04

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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.