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Finding the Fourth Proportional to 353,235.66, 487,379.88 and 224,127.06

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Solution

The fourth proportional to 353,235.66, 487,379.88 and 224,127.06 is: 309,241.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,235.66 : 487,379.88 = 224,127.06 : x
  2. Step 2: Convert to fraction form
    353,235.66/487,379.88 = 224,127.06/x
  3. Step 3: Cross multiply
    353,235.66x = 487,379.88 × 224,127.06
  4. Step 4: Simplify right side
    353,235.66x = 109,235,019,607.55
  5. Step 5: Solve for x
    x = 109,235,019,607.55/353,235.66
  6. Step 6: Final answer
    x = 309,241.20

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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.