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Finding the Fourth Proportional to 348,030, 480,513.06 and 267,313.50

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Solution

The fourth proportional to 348,030, 480,513.06 and 267,313.50 is: 369,070.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,030 : 480,513.06 = 267,313.50 : x
  2. Step 2: Convert to fraction form
    348,030/480,513.06 = 267,313.50/x
  3. Step 3: Cross multiply
    348,030x = 480,513.06 × 267,313.50
  4. Step 4: Simplify right side
    348,030x = 128,447,627,864.31
  5. Step 5: Solve for x
    x = 128,447,627,864.31/348,030
  6. Step 6: Final answer
    x = 369,070.56

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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.