Home / 316,196.87-436,338.70-172,962.95

Finding the Fourth Proportional to 316,196.87, 436,338.70 and 172,962.95

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Solution

The fourth proportional to 316,196.87, 436,338.70 and 172,962.95 is: 238,681.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,196.87 : 436,338.70 = 172,962.95 : x
  2. Step 2: Convert to fraction form
    316,196.87/436,338.70 = 172,962.95/x
  3. Step 3: Cross multiply
    316,196.87x = 436,338.70 × 172,962.95
  4. Step 4: Simplify right side
    316,196.87x = 75,470,426,137.06
  5. Step 5: Solve for x
    x = 75,470,426,137.06/316,196.87
  6. Step 6: Final answer
    x = 238,681.77

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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.