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Finding the Fourth Proportional to 565,540.80, 848,303.73 and 139,080.32

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Solution

The fourth proportional to 565,540.80, 848,303.73 and 139,080.32 is: 208,618.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,540.80 : 848,303.73 = 139,080.32 : x
  2. Step 2: Convert to fraction form
    565,540.80/848,303.73 = 139,080.32/x
  3. Step 3: Cross multiply
    565,540.80x = 848,303.73 × 139,080.32
  4. Step 4: Simplify right side
    565,540.80x = 117,982,349,984.08
  5. Step 5: Solve for x
    x = 117,982,349,984.08/565,540.80
  6. Step 6: Final answer
    x = 208,618.64

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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.