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Finding the Fourth Proportional to 300,280.48, 414,537.08 and 172,931.48

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Solution

The fourth proportional to 300,280.48, 414,537.08 and 172,931.48 is: 238,731.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,280.48 : 414,537.08 = 172,931.48 : x
  2. Step 2: Convert to fraction form
    300,280.48/414,537.08 = 172,931.48/x
  3. Step 3: Cross multiply
    300,280.48x = 414,537.08 × 172,931.48
  4. Step 4: Simplify right side
    300,280.48x = 71,686,510,759.28
  5. Step 5: Solve for x
    x = 71,686,510,759.28/300,280.48
  6. Step 6: Final answer
    x = 238,731.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.