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Finding the Fourth Proportional to 268,445.70, 370,457.46 and 145,938.33

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Solution

The fourth proportional to 268,445.70, 370,457.46 and 145,938.33 is: 201,396.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,445.70 : 370,457.46 = 145,938.33 : x
  2. Step 2: Convert to fraction form
    268,445.70/370,457.46 = 145,938.33/x
  3. Step 3: Cross multiply
    268,445.70x = 370,457.46 × 145,938.33
  4. Step 4: Simplify right side
    268,445.70x = 54,063,943,048.44
  5. Step 5: Solve for x
    x = 54,063,943,048.44/268,445.70
  6. Step 6: Final answer
    x = 201,396.20

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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.