Home / 388,936.69-536,732.63-210,088.69

Finding the Fourth Proportional to 388,936.69, 536,732.63 and 210,088.69

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Solution

The fourth proportional to 388,936.69, 536,732.63 and 210,088.69 is: 289,922.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,936.69 : 536,732.63 = 210,088.69 : x
  2. Step 2: Convert to fraction form
    388,936.69/536,732.63 = 210,088.69/x
  3. Step 3: Cross multiply
    388,936.69x = 536,732.63 × 210,088.69
  4. Step 4: Simplify right side
    388,936.69x = 112,761,453,512.51
  5. Step 5: Solve for x
    x = 112,761,453,512.51/388,936.69
  6. Step 6: Final answer
    x = 289,922.39

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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.