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Finding the Fourth Proportional to 340,302.81, 509,562.41 and 239,919.51

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Solution

The fourth proportional to 340,302.81, 509,562.41 and 239,919.51 is: 359,250.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,302.81 : 509,562.41 = 239,919.51 : x
  2. Step 2: Convert to fraction form
    340,302.81/509,562.41 = 239,919.51/x
  3. Step 3: Cross multiply
    340,302.81x = 509,562.41 × 239,919.51
  4. Step 4: Simplify right side
    340,302.81x = 122,253,962,522.02
  5. Step 5: Solve for x
    x = 122,253,962,522.02/340,302.81
  6. Step 6: Final answer
    x = 359,250.52

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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.