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Finding the Fourth Proportional to 245,555.20, 367,987.20 and 181,878.40

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Solution

The fourth proportional to 245,555.20, 367,987.20 and 181,878.40 is: 272,561.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,555.20 : 367,987.20 = 181,878.40 : x
  2. Step 2: Convert to fraction form
    245,555.20/367,987.20 = 181,878.40/x
  3. Step 3: Cross multiply
    245,555.20x = 367,987.20 × 181,878.40
  4. Step 4: Simplify right side
    245,555.20x = 66,928,923,156.48
  5. Step 5: Solve for x
    x = 66,928,923,156.48/245,555.20
  6. Step 6: Final answer
    x = 272,561.62

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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.