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Finding the Fourth Proportional to 380,732.40, 525,374.10 and 227,739.60

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Solution

The fourth proportional to 380,732.40, 525,374.10 and 227,739.60 is: 314,258.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,732.40 : 525,374.10 = 227,739.60 : x
  2. Step 2: Convert to fraction form
    380,732.40/525,374.10 = 227,739.60/x
  3. Step 3: Cross multiply
    380,732.40x = 525,374.10 × 227,739.60
  4. Step 4: Simplify right side
    380,732.40x = 119,648,487,384.36
  5. Step 5: Solve for x
    x = 119,648,487,384.36/380,732.40
  6. Step 6: Final answer
    x = 314,258.75

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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.