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Finding the Fourth Proportional to 369,085.93, 509,338.59 and 199,320.05

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Solution

The fourth proportional to 369,085.93, 509,338.59 and 199,320.05 is: 275,061.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,085.93 : 509,338.59 = 199,320.05 : x
  2. Step 2: Convert to fraction form
    369,085.93/509,338.59 = 199,320.05/x
  3. Step 3: Cross multiply
    369,085.93x = 509,338.59 × 199,320.05
  4. Step 4: Simplify right side
    369,085.93x = 101,521,393,751.63
  5. Step 5: Solve for x
    x = 101,521,393,751.63/369,085.93
  6. Step 6: Final answer
    x = 275,061.68

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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.