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Finding the Fourth Proportional to 369,764.80, 554,647.20 and 355,249.60

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Solution

The fourth proportional to 369,764.80, 554,647.20 and 355,249.60 is: 532,874.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,764.80 : 554,647.20 = 355,249.60 : x
  2. Step 2: Convert to fraction form
    369,764.80/554,647.20 = 355,249.60/x
  3. Step 3: Cross multiply
    369,764.80x = 554,647.20 × 355,249.60
  4. Step 4: Simplify right side
    369,764.80x = 197,038,195,941.12
  5. Step 5: Solve for x
    x = 197,038,195,941.12/369,764.80
  6. Step 6: Final answer
    x = 532,874.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.