Home / 387,380.02-581,245.30-197,742.46

Finding the Fourth Proportional to 387,380.02, 581,245.30 and 197,742.46

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Solution

The fourth proportional to 387,380.02, 581,245.30 and 197,742.46 is: 296,703.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,380.02 : 581,245.30 = 197,742.46 : x
  2. Step 2: Convert to fraction form
    387,380.02/581,245.30 = 197,742.46/x
  3. Step 3: Cross multiply
    387,380.02x = 581,245.30 × 197,742.46
  4. Step 4: Simplify right side
    387,380.02x = 114,936,875,485.44
  5. Step 5: Solve for x
    x = 114,936,875,485.44/387,380.02
  6. Step 6: Final answer
    x = 296,703.16

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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.