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Finding the Fourth Proportional to 360,015.60, 540,023.40 and 280,700.40

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Solution

The fourth proportional to 360,015.60, 540,023.40 and 280,700.40 is: 421,050.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,015.60 : 540,023.40 = 280,700.40 : x
  2. Step 2: Convert to fraction form
    360,015.60/540,023.40 = 280,700.40/x
  3. Step 3: Cross multiply
    360,015.60x = 540,023.40 × 280,700.40
  4. Step 4: Simplify right side
    360,015.60x = 151,584,784,389.36
  5. Step 5: Solve for x
    x = 151,584,784,389.36/360,015.60
  6. Step 6: Final answer
    x = 421,050.60

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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.