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Finding the Fourth Proportional to 520,048.28, 780,169.26 and 164,966.60

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Solution

The fourth proportional to 520,048.28, 780,169.26 and 164,966.60 is: 247,480.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,048.28 : 780,169.26 = 164,966.60 : x
  2. Step 2: Convert to fraction form
    520,048.28/780,169.26 = 164,966.60/x
  3. Step 3: Cross multiply
    520,048.28x = 780,169.26 × 164,966.60
  4. Step 4: Simplify right side
    520,048.28x = 128,701,870,246.72
  5. Step 5: Solve for x
    x = 128,701,870,246.72/520,048.28
  6. Step 6: Final answer
    x = 247,480.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.