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Finding the Fourth Proportional to 380,846.56, 525,807.12 and 245,116.24

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Solution

The fourth proportional to 380,846.56, 525,807.12 and 245,116.24 is: 338,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,846.56 : 525,807.12 = 245,116.24 : x
  2. Step 2: Convert to fraction form
    380,846.56/525,807.12 = 245,116.24/x
  3. Step 3: Cross multiply
    380,846.56x = 525,807.12 × 245,116.24
  4. Step 4: Simplify right side
    380,846.56x = 128,883,864,219.63
  5. Step 5: Solve for x
    x = 128,883,864,219.63/380,846.56
  6. Step 6: Final answer
    x = 338,414.15

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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.