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Finding the Fourth Proportional to 353,199.88, 487,522.56 and 240,088.24

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Solution

The fourth proportional to 353,199.88, 487,522.56 and 240,088.24 is: 331,394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,199.88 : 487,522.56 = 240,088.24 : x
  2. Step 2: Convert to fraction form
    353,199.88/487,522.56 = 240,088.24/x
  3. Step 3: Cross multiply
    353,199.88x = 487,522.56 × 240,088.24
  4. Step 4: Simplify right side
    353,199.88x = 117,048,433,390.69
  5. Step 5: Solve for x
    x = 117,048,433,390.69/353,199.88
  6. Step 6: Final answer
    x = 331,394.32

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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.