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Finding the Fourth Proportional to 372,574.42, 514,139.61 and 202,804.90

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Solution

The fourth proportional to 372,574.42, 514,139.61 and 202,804.90 is: 279,863.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,574.42 : 514,139.61 = 202,804.90 : x
  2. Step 2: Convert to fraction form
    372,574.42/514,139.61 = 202,804.90/x
  3. Step 3: Cross multiply
    372,574.42x = 514,139.61 × 202,804.90
  4. Step 4: Simplify right side
    372,574.42x = 104,270,032,192.09
  5. Step 5: Solve for x
    x = 104,270,032,192.09/372,574.42
  6. Step 6: Final answer
    x = 279,863.64

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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.