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Finding the Fourth Proportional to 349,689.39, 522,543.38 and 262,567.30

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Solution

The fourth proportional to 349,689.39, 522,543.38 and 262,567.30 is: 392,356.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,689.39 : 522,543.38 = 262,567.30 : x
  2. Step 2: Convert to fraction form
    349,689.39/522,543.38 = 262,567.30/x
  3. Step 3: Cross multiply
    349,689.39x = 522,543.38 × 262,567.30
  4. Step 4: Simplify right side
    349,689.39x = 137,202,804,419.47
  5. Step 5: Solve for x
    x = 137,202,804,419.47/349,689.39
  6. Step 6: Final answer
    x = 392,356.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.