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Finding the Fourth Proportional to 369,103.28, 509,362.40 and 199,337.44

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Solution

The fourth proportional to 369,103.28, 509,362.40 and 199,337.44 is: 275,085.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,103.28 : 509,362.40 = 199,337.44 : x
  2. Step 2: Convert to fraction form
    369,103.28/509,362.40 = 199,337.44/x
  3. Step 3: Cross multiply
    369,103.28x = 509,362.40 × 199,337.44
  4. Step 4: Simplify right side
    369,103.28x = 101,534,996,848.26
  5. Step 5: Solve for x
    x = 101,534,996,848.26/369,103.28
  6. Step 6: Final answer
    x = 275,085.60

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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.