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Finding the Fourth Proportional to 388,025.32, 535,016.91 and 265,576.75

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Solution

The fourth proportional to 388,025.32, 535,016.91 and 265,576.75 is: 366,182.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,025.32 : 535,016.91 = 265,576.75 : x
  2. Step 2: Convert to fraction form
    388,025.32/535,016.91 = 265,576.75/x
  3. Step 3: Cross multiply
    388,025.32x = 535,016.91 × 265,576.75
  4. Step 4: Simplify right side
    388,025.32x = 142,088,052,152.84
  5. Step 5: Solve for x
    x = 142,088,052,152.84/388,025.32
  6. Step 6: Final answer
    x = 366,182.42

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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.