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Finding the Fourth Proportional to 370,533.48, 511,346.12 and 225,289.32

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Solution

The fourth proportional to 370,533.48, 511,346.12 and 225,289.32 is: 310,905.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,533.48 : 511,346.12 = 225,289.32 : x
  2. Step 2: Convert to fraction form
    370,533.48/511,346.12 = 225,289.32/x
  3. Step 3: Cross multiply
    370,533.48x = 511,346.12 × 225,289.32
  4. Step 4: Simplify right side
    370,533.48x = 115,200,819,659.44
  5. Step 5: Solve for x
    x = 115,200,819,659.44/370,533.48
  6. Step 6: Final answer
    x = 310,905.29

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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.