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Finding the Fourth Proportional to 292,421.36, 403,542.80 and 158,285.36

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Solution

The fourth proportional to 292,421.36, 403,542.80 and 158,285.36 is: 218,434.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,421.36 : 403,542.80 = 158,285.36 : x
  2. Step 2: Convert to fraction form
    292,421.36/403,542.80 = 158,285.36/x
  3. Step 3: Cross multiply
    292,421.36x = 403,542.80 × 158,285.36
  4. Step 4: Simplify right side
    292,421.36x = 63,874,917,373.41
  5. Step 5: Solve for x
    x = 63,874,917,373.41/292,421.36
  6. Step 6: Final answer
    x = 218,434.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.