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Finding the Fourth Proportional to 393,576.30, 590,407.38 and 144,258.30

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Solution

The fourth proportional to 393,576.30, 590,407.38 and 144,258.30 is: 216,403.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,576.30 : 590,407.38 = 144,258.30 : x
  2. Step 2: Convert to fraction form
    393,576.30/590,407.38 = 144,258.30/x
  3. Step 3: Cross multiply
    393,576.30x = 590,407.38 × 144,258.30
  4. Step 4: Simplify right side
    393,576.30x = 85,171,164,946.25
  5. Step 5: Solve for x
    x = 85,171,164,946.25/393,576.30
  6. Step 6: Final answer
    x = 216,403.19

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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.