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Finding the Fourth Proportional to 380,704.54, 525,534.35 and 256,552.74

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Solution

The fourth proportional to 380,704.54, 525,534.35 and 256,552.74 is: 354,152.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,704.54 : 525,534.35 = 256,552.74 : x
  2. Step 2: Convert to fraction form
    380,704.54/525,534.35 = 256,552.74/x
  3. Step 3: Cross multiply
    380,704.54x = 525,534.35 × 256,552.74
  4. Step 4: Simplify right side
    380,704.54x = 134,827,277,456.62
  5. Step 5: Solve for x
    x = 134,827,277,456.62/380,704.54
  6. Step 6: Final answer
    x = 354,152.01

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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.