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Finding the Fourth Proportional to 380,618.22, 525,245.10 and 208,527.81

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Solution

The fourth proportional to 380,618.22, 525,245.10 and 208,527.81 is: 287,763.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,618.22 : 525,245.10 = 208,527.81 : x
  2. Step 2: Convert to fraction form
    380,618.22/525,245.10 = 208,527.81/x
  3. Step 3: Cross multiply
    380,618.22x = 525,245.10 × 208,527.81
  4. Step 4: Simplify right side
    380,618.22x = 109,528,210,416.23
  5. Step 5: Solve for x
    x = 109,528,210,416.23/380,618.22
  6. Step 6: Final answer
    x = 287,763.97

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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.