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Finding the Fourth Proportional to 369,373.66, 509,735.65 and 199,607.78

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Solution

The fourth proportional to 369,373.66, 509,735.65 and 199,607.78 is: 275,458.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,373.66 : 509,735.65 = 199,607.78 : x
  2. Step 2: Convert to fraction form
    369,373.66/509,735.65 = 199,607.78/x
  3. Step 3: Cross multiply
    369,373.66x = 509,735.65 × 199,607.78
  4. Step 4: Simplify right side
    369,373.66x = 101,747,201,483.36
  5. Step 5: Solve for x
    x = 101,747,201,483.36/369,373.66
  6. Step 6: Final answer
    x = 275,458.74

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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.