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Finding the Fourth Proportional to 380,361.63, 524,915.45 and 210,595.75

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Solution

The fourth proportional to 380,361.63, 524,915.45 and 210,595.75 is: 290,631.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,361.63 : 524,915.45 = 210,595.75 : x
  2. Step 2: Convert to fraction form
    380,361.63/524,915.45 = 210,595.75/x
  3. Step 3: Cross multiply
    380,361.63x = 524,915.45 × 210,595.75
  4. Step 4: Simplify right side
    380,361.63x = 110,544,962,879.34
  5. Step 5: Solve for x
    x = 110,544,962,879.34/380,361.63
  6. Step 6: Final answer
    x = 290,631.22

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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.