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Finding the Fourth Proportional to 308,686.79, 463,048.11 and 119,148.23

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Solution

The fourth proportional to 308,686.79, 463,048.11 and 119,148.23 is: 178,729.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,686.79 : 463,048.11 = 119,148.23 : x
  2. Step 2: Convert to fraction form
    308,686.79/463,048.11 = 119,148.23/x
  3. Step 3: Cross multiply
    308,686.79x = 463,048.11 × 119,148.23
  4. Step 4: Simplify right side
    308,686.79x = 55,171,362,711.35
  5. Step 5: Solve for x
    x = 55,171,362,711.35/308,686.79
  6. Step 6: Final answer
    x = 178,729.26

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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.