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Finding the Fourth Proportional to 340,737.63, 470,238.72 and 187,775.81

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Solution

The fourth proportional to 340,737.63, 470,238.72 and 187,775.81 is: 259,142.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,737.63 : 470,238.72 = 187,775.81 : x
  2. Step 2: Convert to fraction form
    340,737.63/470,238.72 = 187,775.81/x
  3. Step 3: Cross multiply
    340,737.63x = 470,238.72 × 187,775.81
  4. Step 4: Simplify right side
    340,737.63x = 88,299,456,541.36
  5. Step 5: Solve for x
    x = 88,299,456,541.36/340,737.63
  6. Step 6: Final answer
    x = 259,142.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.