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Finding the Fourth Proportional to 380,703.54, 525,532.97 and 256,551.74

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Solution

The fourth proportional to 380,703.54, 525,532.97 and 256,551.74 is: 354,150.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,703.54 : 525,532.97 = 256,551.74 : x
  2. Step 2: Convert to fraction form
    380,703.54/525,532.97 = 256,551.74/x
  3. Step 3: Cross multiply
    380,703.54x = 525,532.97 × 256,551.74
  4. Step 4: Simplify right side
    380,703.54x = 134,826,400,443.19
  5. Step 5: Solve for x
    x = 134,826,400,443.19/380,703.54
  6. Step 6: Final answer
    x = 354,150.63

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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.