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Finding the Fourth Proportional to 320,437.80, 442,205.52 and 175,246.44

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Solution

The fourth proportional to 320,437.80, 442,205.52 and 175,246.44 is: 241,840.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,437.80 : 442,205.52 = 175,246.44 : x
  2. Step 2: Convert to fraction form
    320,437.80/442,205.52 = 175,246.44/x
  3. Step 3: Cross multiply
    320,437.80x = 442,205.52 × 175,246.44
  4. Step 4: Simplify right side
    320,437.80x = 77,494,943,128.35
  5. Step 5: Solve for x
    x = 77,494,943,128.35/320,437.80
  6. Step 6: Final answer
    x = 241,840.83

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1.5x scale

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.