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Finding the Fourth Proportional to 292,484.37, 438,726.69 and 105,495.87

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Solution

The fourth proportional to 292,484.37, 438,726.69 and 105,495.87 is: 158,243.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,484.37 : 438,726.69 = 105,495.87 : x
  2. Step 2: Convert to fraction form
    292,484.37/438,726.69 = 105,495.87/x
  3. Step 3: Cross multiply
    292,484.37x = 438,726.69 × 105,495.87
  4. Step 4: Simplify right side
    292,484.37x = 46,283,853,853.77
  5. Step 5: Solve for x
    x = 46,283,853,853.77/292,484.37
  6. Step 6: Final answer
    x = 158,243.85

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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.