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Finding the Fourth Proportional to 278,477.80, 417,867.96 and 118,527.64

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Solution

The fourth proportional to 278,477.80, 417,867.96 and 118,527.64 is: 177,855.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,477.80 : 417,867.96 = 118,527.64 : x
  2. Step 2: Convert to fraction form
    278,477.80/417,867.96 = 118,527.64/x
  3. Step 3: Cross multiply
    278,477.80x = 417,867.96 × 118,527.64
  4. Step 4: Simplify right side
    278,477.80x = 49,528,903,130.41
  5. Step 5: Solve for x
    x = 49,528,903,130.41/278,477.80
  6. Step 6: Final answer
    x = 177,855.84

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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.