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Finding the Fourth Proportional to 370,601.70, 555,902.55 and 121,308.90

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Solution

The fourth proportional to 370,601.70, 555,902.55 and 121,308.90 is: 181,963.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,601.70 : 555,902.55 = 121,308.90 : x
  2. Step 2: Convert to fraction form
    370,601.70/555,902.55 = 121,308.90/x
  3. Step 3: Cross multiply
    370,601.70x = 555,902.55 × 121,308.90
  4. Step 4: Simplify right side
    370,601.70x = 67,435,926,847.70
  5. Step 5: Solve for x
    x = 67,435,926,847.70/370,601.70
  6. Step 6: Final answer
    x = 181,963.35

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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.