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Finding the Fourth Proportional to 438,305.67, 604,871.26 and 242,071.63

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Solution

The fourth proportional to 438,305.67, 604,871.26 and 242,071.63 is: 334,064.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,305.67 : 604,871.26 = 242,071.63 : x
  2. Step 2: Convert to fraction form
    438,305.67/604,871.26 = 242,071.63/x
  3. Step 3: Cross multiply
    438,305.67x = 604,871.26 × 242,071.63
  4. Step 4: Simplify right side
    438,305.67x = 146,422,169,731.00
  5. Step 5: Solve for x
    x = 146,422,169,731.00/438,305.67
  6. Step 6: Final answer
    x = 334,064.06

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Why These Related Problems?

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