Home / 465,916.37-642,970.06-282,151.64

Finding the Fourth Proportional to 465,916.37, 642,970.06 and 282,151.64

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Solution

The fourth proportional to 465,916.37, 642,970.06 and 282,151.64 is: 389,372.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,916.37 : 642,970.06 = 282,151.64 : x
  2. Step 2: Convert to fraction form
    465,916.37/642,970.06 = 282,151.64/x
  3. Step 3: Cross multiply
    465,916.37x = 642,970.06 × 282,151.64
  4. Step 4: Simplify right side
    465,916.37x = 181,415,057,801.94
  5. Step 5: Solve for x
    x = 181,415,057,801.94/465,916.37
  6. Step 6: Final answer
    x = 389,372.58

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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.