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Finding the Fourth Proportional to 310,323.60, 465,485.40 and 308,355.30

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Solution

The fourth proportional to 310,323.60, 465,485.40 and 308,355.30 is: 462,532.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,323.60 : 465,485.40 = 308,355.30 : x
  2. Step 2: Convert to fraction form
    310,323.60/465,485.40 = 308,355.30/x
  3. Step 3: Cross multiply
    310,323.60x = 465,485.40 × 308,355.30
  4. Step 4: Simplify right side
    310,323.60x = 143,534,890,162.62
  5. Step 5: Solve for x
    x = 143,534,890,162.62/310,323.60
  6. Step 6: Final answer
    x = 462,532.95

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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.