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Finding the Fourth Proportional to 298,477.60, 447,716.88 and 120,988.24

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Solution

The fourth proportional to 298,477.60, 447,716.88 and 120,988.24 is: 181,482.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,477.60 : 447,716.88 = 120,988.24 : x
  2. Step 2: Convert to fraction form
    298,477.60/447,716.88 = 120,988.24/x
  3. Step 3: Cross multiply
    298,477.60x = 447,716.88 × 120,988.24
  4. Step 4: Simplify right side
    298,477.60x = 54,168,477,329.49
  5. Step 5: Solve for x
    x = 54,168,477,329.49/298,477.60
  6. Step 6: Final answer
    x = 181,482.55

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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.