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Finding the Fourth Proportional to 308,124.80, 462,268.20 and 97,762.40

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Solution

The fourth proportional to 308,124.80, 462,268.20 and 97,762.40 is: 146,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,124.80 : 462,268.20 = 97,762.40 : x
  2. Step 2: Convert to fraction form
    308,124.80/462,268.20 = 97,762.40/x
  3. Step 3: Cross multiply
    308,124.80x = 462,268.20 × 97,762.40
  4. Step 4: Simplify right side
    308,124.80x = 45,192,448,675.68
  5. Step 5: Solve for x
    x = 45,192,448,675.68/308,124.80
  6. Step 6: Final answer
    x = 146,669.30

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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.