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Finding the Fourth Proportional to 369,418.08, 509,560.56 and 256,199.52

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Solution

The fourth proportional to 369,418.08, 509,560.56 and 256,199.52 is: 353,391.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,418.08 : 509,560.56 = 256,199.52 : x
  2. Step 2: Convert to fraction form
    369,418.08/509,560.56 = 256,199.52/x
  3. Step 3: Cross multiply
    369,418.08x = 509,560.56 × 256,199.52
  4. Step 4: Simplify right side
    369,418.08x = 130,549,170,882.93
  5. Step 5: Solve for x
    x = 130,549,170,882.93/369,418.08
  6. Step 6: Final answer
    x = 353,391.40

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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.