Home / 355,718.45-533,578.59-145,356.39

Finding the Fourth Proportional to 355,718.45, 533,578.59 and 145,356.39

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Solution

The fourth proportional to 355,718.45, 533,578.59 and 145,356.39 is: 218,034.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,718.45 : 533,578.59 = 145,356.39 : x
  2. Step 2: Convert to fraction form
    355,718.45/533,578.59 = 145,356.39/x
  3. Step 3: Cross multiply
    355,718.45x = 533,578.59 × 145,356.39
  4. Step 4: Simplify right side
    355,718.45x = 77,559,057,623.69
  5. Step 5: Solve for x
    x = 77,559,057,623.69/355,718.45
  6. Step 6: Final answer
    x = 218,034.96

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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.