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Finding the Fourth Proportional to 370,156.60, 555,234.90 and 133,535.80

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Solution

The fourth proportional to 370,156.60, 555,234.90 and 133,535.80 is: 200,303.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,156.60 : 555,234.90 = 133,535.80 : x
  2. Step 2: Convert to fraction form
    370,156.60/555,234.90 = 133,535.80/x
  3. Step 3: Cross multiply
    370,156.60x = 555,234.90 × 133,535.80
  4. Step 4: Simplify right side
    370,156.60x = 74,143,736,559.42
  5. Step 5: Solve for x
    x = 74,143,736,559.42/370,156.60
  6. Step 6: Final answer
    x = 200,303.70

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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.