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Finding the Fourth Proportional to 410,090.10, 615,135.15 and 305,114.10

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Solution

The fourth proportional to 410,090.10, 615,135.15 and 305,114.10 is: 457,671.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,090.10 : 615,135.15 = 305,114.10 : x
  2. Step 2: Convert to fraction form
    410,090.10/615,135.15 = 305,114.10/x
  3. Step 3: Cross multiply
    410,090.10x = 615,135.15 × 305,114.10
  4. Step 4: Simplify right side
    410,090.10x = 187,686,407,670.62
  5. Step 5: Solve for x
    x = 187,686,407,670.62/410,090.10
  6. Step 6: Final answer
    x = 457,671.15

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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.