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Finding the Fourth Proportional to 292,642.81, 438,999.37 and 103,064.00

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Solution

The fourth proportional to 292,642.81, 438,999.37 and 103,064.00 is: 154,608.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,642.81 : 438,999.37 = 103,064.00 : x
  2. Step 2: Convert to fraction form
    292,642.81/438,999.37 = 103,064.00/x
  3. Step 3: Cross multiply
    292,642.81x = 438,999.37 × 103,064.00
  4. Step 4: Simplify right side
    292,642.81x = 45,245,028,617.02
  5. Step 5: Solve for x
    x = 45,245,028,617.02/292,642.81
  6. Step 6: Final answer
    x = 154,608.37

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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.