Home / 369,786.55-510,329.51-208,582.78

Finding the Fourth Proportional to 369,786.55, 510,329.51 and 208,582.78

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Solution

The fourth proportional to 369,786.55, 510,329.51 and 208,582.78 is: 287,857.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,786.55 : 510,329.51 = 208,582.78 : x
  2. Step 2: Convert to fraction form
    369,786.55/510,329.51 = 208,582.78/x
  3. Step 3: Cross multiply
    369,786.55x = 510,329.51 × 208,582.78
  4. Step 4: Simplify right side
    369,786.55x = 106,445,947,911.84
  5. Step 5: Solve for x
    x = 106,445,947,911.84/369,786.55
  6. Step 6: Final answer
    x = 287,857.81

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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.