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Finding the Fourth Proportional to 438,361.83, 657,547.52 and 154,060.48

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Solution

The fourth proportional to 438,361.83, 657,547.52 and 154,060.48 is: 231,092.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,361.83 : 657,547.52 = 154,060.48 : x
  2. Step 2: Convert to fraction form
    438,361.83/657,547.52 = 154,060.48/x
  3. Step 3: Cross multiply
    438,361.83x = 657,547.52 × 154,060.48
  4. Step 4: Simplify right side
    438,361.83x = 101,302,086,554.01
  5. Step 5: Solve for x
    x = 101,302,086,554.01/438,361.83
  6. Step 6: Final answer
    x = 231,092.40

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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.