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Finding the Fourth Proportional to 388,850.40, 536,613.44 and 210,002.40

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Solution

The fourth proportional to 388,850.40, 536,613.44 and 210,002.40 is: 289,803.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,850.40 : 536,613.44 = 210,002.40 : x
  2. Step 2: Convert to fraction form
    388,850.40/536,613.44 = 210,002.40/x
  3. Step 3: Cross multiply
    388,850.40x = 536,613.44 × 210,002.40
  4. Step 4: Simplify right side
    388,850.40x = 112,690,110,272.26
  5. Step 5: Solve for x
    x = 112,690,110,272.26/388,850.40
  6. Step 6: Final answer
    x = 289,803.25

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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.