Home / 145,558.20-218,337.30-40,378.20

Finding the Fourth Proportional to 145,558.20, 218,337.30 and 40,378.20

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Solution

The fourth proportional to 145,558.20, 218,337.30 and 40,378.20 is: 60,567.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,558.20 : 218,337.30 = 40,378.20 : x
  2. Step 2: Convert to fraction form
    145,558.20/218,337.30 = 40,378.20/x
  3. Step 3: Cross multiply
    145,558.20x = 218,337.30 × 40,378.20
  4. Step 4: Simplify right side
    145,558.20x = 8,816,067,166.86
  5. Step 5: Solve for x
    x = 8,816,067,166.86/145,558.20
  6. Step 6: Final answer
    x = 60,567.30

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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.