Home / 345,454.40-476,628-238,053.44

Finding the Fourth Proportional to 345,454.40, 476,628 and 238,053.44

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Solution

The fourth proportional to 345,454.40, 476,628 and 238,053.44 is: 328,445.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,454.40 : 476,628 = 238,053.44 : x
  2. Step 2: Convert to fraction form
    345,454.40/476,628 = 238,053.44/x
  3. Step 3: Cross multiply
    345,454.40x = 476,628 × 238,053.44
  4. Step 4: Simplify right side
    345,454.40x = 113,462,935,000.32
  5. Step 5: Solve for x
    x = 113,462,935,000.32/345,454.40
  6. Step 6: Final answer
    x = 328,445.48

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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.