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Finding the Fourth Proportional to 369,280.89, 509,607.99 and 199,515.15

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Solution

The fourth proportional to 369,280.89, 509,607.99 and 199,515.15 is: 275,331.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,280.89 : 509,607.99 = 199,515.15 : x
  2. Step 2: Convert to fraction form
    369,280.89/509,607.99 = 199,515.15/x
  3. Step 3: Cross multiply
    369,280.89x = 509,607.99 × 199,515.15
  4. Step 4: Simplify right side
    369,280.89x = 101,674,514,566.05
  5. Step 5: Solve for x
    x = 101,674,514,566.05/369,280.89
  6. Step 6: Final answer
    x = 275,331.10

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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.