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Finding the Fourth Proportional to 382,148.40, 573,076.80 and 115,820.40

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Solution

The fourth proportional to 382,148.40, 573,076.80 and 115,820.40 is: 173,686.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,148.40 : 573,076.80 = 115,820.40 : x
  2. Step 2: Convert to fraction form
    382,148.40/573,076.80 = 115,820.40/x
  3. Step 3: Cross multiply
    382,148.40x = 573,076.80 × 115,820.40
  4. Step 4: Simplify right side
    382,148.40x = 66,373,984,206.72
  5. Step 5: Solve for x
    x = 66,373,984,206.72/382,148.40
  6. Step 6: Final answer
    x = 173,686.41

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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.