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Finding the Fourth Proportional to 340,383.83, 509,153.59 and 239,174.76

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Solution

The fourth proportional to 340,383.83, 509,153.59 and 239,174.76 is: 357,762.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,383.83 : 509,153.59 = 239,174.76 : x
  2. Step 2: Convert to fraction form
    340,383.83/509,153.59 = 239,174.76/x
  3. Step 3: Cross multiply
    340,383.83x = 509,153.59 × 239,174.76
  4. Step 4: Simplify right side
    340,383.83x = 121,776,689,015.51
  5. Step 5: Solve for x
    x = 121,776,689,015.51/340,383.83
  6. Step 6: Final answer
    x = 357,762.85

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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.