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Finding the Fourth Proportional to 380,559.39, 525,172.61 and 208,473.60

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Solution

The fourth proportional to 380,559.39, 525,172.61 and 208,473.60 is: 287,693.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,559.39 : 525,172.61 = 208,473.60 : x
  2. Step 2: Convert to fraction form
    380,559.39/525,172.61 = 208,473.60/x
  3. Step 3: Cross multiply
    380,559.39x = 525,172.61 × 208,473.60
  4. Step 4: Simplify right side
    380,559.39x = 109,484,623,585.73
  5. Step 5: Solve for x
    x = 109,484,623,585.73/380,559.39
  6. Step 6: Final answer
    x = 287,693.92

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1.5x scale

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.