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Finding the Fourth Proportional to 360,807, 497,879.82 and 215,583.87

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Solution

The fourth proportional to 360,807, 497,879.82 and 215,583.87 is: 297,485.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,807 : 497,879.82 = 215,583.87 : x
  2. Step 2: Convert to fraction form
    360,807/497,879.82 = 215,583.87/x
  3. Step 3: Cross multiply
    360,807x = 497,879.82 × 215,583.87
  4. Step 4: Simplify right side
    360,807x = 107,334,858,390.50
  5. Step 5: Solve for x
    x = 107,334,858,390.50/360,807
  6. Step 6: Final answer
    x = 297,485.52

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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.