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Finding the Fourth Proportional to 368,400.84, 508,372.38 and 207,262.68

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Solution

The fourth proportional to 368,400.84, 508,372.38 and 207,262.68 is: 286,010.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,400.84 : 508,372.38 = 207,262.68 : x
  2. Step 2: Convert to fraction form
    368,400.84/508,372.38 = 207,262.68/x
  3. Step 3: Cross multiply
    368,400.84x = 508,372.38 × 207,262.68
  4. Step 4: Simplify right side
    368,400.84x = 105,366,621,916.78
  5. Step 5: Solve for x
    x = 105,366,621,916.78/368,400.84
  6. Step 6: Final answer
    x = 286,010.81

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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.