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Finding the Fourth Proportional to 355,487.60, 531,935.40 and 262,175.60

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Solution

The fourth proportional to 355,487.60, 531,935.40 and 262,175.60 is: 392,307.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,487.60 : 531,935.40 = 262,175.60 : x
  2. Step 2: Convert to fraction form
    355,487.60/531,935.40 = 262,175.60/x
  3. Step 3: Cross multiply
    355,487.60x = 531,935.40 × 262,175.60
  4. Step 4: Simplify right side
    355,487.60x = 139,460,482,656.24
  5. Step 5: Solve for x
    x = 139,460,482,656.24/355,487.60
  6. Step 6: Final answer
    x = 392,307.59

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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.