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Finding the Fourth Proportional to 478,159.81, 659,860.53 and 263,299.36

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Solution

The fourth proportional to 478,159.81, 659,860.53 and 263,299.36 is: 363,353.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,159.81 : 659,860.53 = 263,299.36 : x
  2. Step 2: Convert to fraction form
    478,159.81/659,860.53 = 263,299.36/x
  3. Step 3: Cross multiply
    478,159.81x = 659,860.53 × 263,299.36
  4. Step 4: Simplify right side
    478,159.81x = 173,740,855,238.26
  5. Step 5: Solve for x
    x = 173,740,855,238.26/478,159.81
  6. Step 6: Final answer
    x = 363,353.12

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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.