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Finding the Fourth Proportional to 292,543.77, 438,815.67 and 102,959.49

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Solution

The fourth proportional to 292,543.77, 438,815.67 and 102,959.49 is: 154,439.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,543.77 : 438,815.67 = 102,959.49 : x
  2. Step 2: Convert to fraction form
    292,543.77/438,815.67 = 102,959.49/x
  3. Step 3: Cross multiply
    292,543.77x = 438,815.67 × 102,959.49
  4. Step 4: Simplify right side
    292,543.77x = 45,180,237,587.21
  5. Step 5: Solve for x
    x = 45,180,237,587.21/292,543.77
  6. Step 6: Final answer
    x = 154,439.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.