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Finding the Fourth Proportional to 469,690.82, 648,173.36 and 254,830.89

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Solution

The fourth proportional to 469,690.82, 648,173.36 and 254,830.89 is: 351,666.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,690.82 : 648,173.36 = 254,830.89 : x
  2. Step 2: Convert to fraction form
    469,690.82/648,173.36 = 254,830.89/x
  3. Step 3: Cross multiply
    469,690.82x = 648,173.36 × 254,830.89
  4. Step 4: Simplify right side
    469,690.82x = 165,174,592,928.94
  5. Step 5: Solve for x
    x = 165,174,592,928.94/469,690.82
  6. Step 6: Final answer
    x = 351,666.64

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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.