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Finding the Fourth Proportional to 438,045, 604,502.10 and 236,841

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Solution

The fourth proportional to 438,045, 604,502.10 and 236,841 is: 326,840.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,045 : 604,502.10 = 236,841 : x
  2. Step 2: Convert to fraction form
    438,045/604,502.10 = 236,841/x
  3. Step 3: Cross multiply
    438,045x = 604,502.10 × 236,841
  4. Step 4: Simplify right side
    438,045x = 143,170,881,866.10
  5. Step 5: Solve for x
    x = 143,170,881,866.10/438,045
  6. Step 6: Final answer
    x = 326,840.58

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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.