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Finding the Fourth Proportional to 405,241.92, 607,811.04 and 155,995.20

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Solution

The fourth proportional to 405,241.92, 607,811.04 and 155,995.20 is: 233,972.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,241.92 : 607,811.04 = 155,995.20 : x
  2. Step 2: Convert to fraction form
    405,241.92/607,811.04 = 155,995.20/x
  3. Step 3: Cross multiply
    405,241.92x = 607,811.04 × 155,995.20
  4. Step 4: Simplify right side
    405,241.92x = 94,815,604,747.01
  5. Step 5: Solve for x
    x = 94,815,604,747.01/405,241.92
  6. Step 6: Final answer
    x = 233,972.84

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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.