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Finding the Fourth Proportional to 370,913.50, 511,860.90 and 201,148.30

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Solution

The fourth proportional to 370,913.50, 511,860.90 and 201,148.30 is: 277,584.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,913.50 : 511,860.90 = 201,148.30 : x
  2. Step 2: Convert to fraction form
    370,913.50/511,860.90 = 201,148.30/x
  3. Step 3: Cross multiply
    370,913.50x = 511,860.90 × 201,148.30
  4. Step 4: Simplify right side
    370,913.50x = 102,959,949,871.47
  5. Step 5: Solve for x
    x = 102,959,949,871.47/370,913.50
  6. Step 6: Final answer
    x = 277,584.80

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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.