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Finding the Fourth Proportional to 446,980.80, 670,276.80 and 147,345.60

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Solution

The fourth proportional to 446,980.80, 670,276.80 and 147,345.60 is: 220,954.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,980.80 : 670,276.80 = 147,345.60 : x
  2. Step 2: Convert to fraction form
    446,980.80/670,276.80 = 147,345.60/x
  3. Step 3: Cross multiply
    446,980.80x = 670,276.80 × 147,345.60
  4. Step 4: Simplify right side
    446,980.80x = 98,762,337,262.08
  5. Step 5: Solve for x
    x = 98,762,337,262.08/446,980.80
  6. Step 6: Final answer
    x = 220,954.32

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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.