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Finding the Fourth Proportional to 208,125.60, 291,007.20 and 208,125.60

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Solution

The fourth proportional to 208,125.60, 291,007.20 and 208,125.60 is: 291,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,125.60 : 291,007.20 = 208,125.60 : x
  2. Step 2: Convert to fraction form
    208,125.60/291,007.20 = 208,125.60/x
  3. Step 3: Cross multiply
    208,125.60x = 291,007.20 × 208,125.60
  4. Step 4: Simplify right side
    208,125.60x = 60,566,048,104.32
  5. Step 5: Solve for x
    x = 60,566,048,104.32/208,125.60
  6. Step 6: Final answer
    x = 291,007.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.