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Finding the Fourth Proportional to 377,237.40, 565,661.70 and 140,458.20

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Solution

The fourth proportional to 377,237.40, 565,661.70 and 140,458.20 is: 210,614.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,237.40 : 565,661.70 = 140,458.20 : x
  2. Step 2: Convert to fraction form
    377,237.40/565,661.70 = 140,458.20/x
  3. Step 3: Cross multiply
    377,237.40x = 565,661.70 × 140,458.20
  4. Step 4: Simplify right side
    377,237.40x = 79,451,824,190.94
  5. Step 5: Solve for x
    x = 79,451,824,190.94/377,237.40
  6. Step 6: Final answer
    x = 210,614.92

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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.