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Finding the Fourth Proportional to 369,079.85, 509,330.19 and 199,313.96

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Solution

The fourth proportional to 369,079.85, 509,330.19 and 199,313.96 is: 275,053.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,079.85 : 509,330.19 = 199,313.96 : x
  2. Step 2: Convert to fraction form
    369,079.85/509,330.19 = 199,313.96/x
  3. Step 3: Cross multiply
    369,079.85x = 509,330.19 × 199,313.96
  4. Step 4: Simplify right side
    369,079.85x = 101,516,617,116.45
  5. Step 5: Solve for x
    x = 101,516,617,116.45/369,079.85
  6. Step 6: Final answer
    x = 275,053.26

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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.