Home / 388,945.32-536,744.55-210,097.32

Finding the Fourth Proportional to 388,945.32, 536,744.55 and 210,097.32

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Solution

The fourth proportional to 388,945.32, 536,744.55 and 210,097.32 is: 289,934.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,945.32 : 536,744.55 = 210,097.32 : x
  2. Step 2: Convert to fraction form
    388,945.32/536,744.55 = 210,097.32/x
  3. Step 3: Cross multiply
    388,945.32x = 536,744.55 × 210,097.32
  4. Step 4: Simplify right side
    388,945.32x = 112,768,591,479.61
  5. Step 5: Solve for x
    x = 112,768,591,479.61/388,945.32
  6. Step 6: Final answer
    x = 289,934.31

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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.