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Finding the Fourth Proportional to 278,492.80, 417,739.20 and 184,014.40

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Solution

The fourth proportional to 278,492.80, 417,739.20 and 184,014.40 is: 276,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,492.80 : 417,739.20 = 184,014.40 : x
  2. Step 2: Convert to fraction form
    278,492.80/417,739.20 = 184,014.40/x
  3. Step 3: Cross multiply
    278,492.80x = 417,739.20 × 184,014.40
  4. Step 4: Simplify right side
    278,492.80x = 76,870,028,244.48
  5. Step 5: Solve for x
    x = 76,870,028,244.48/278,492.80
  6. Step 6: Final answer
    x = 276,021.60

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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.