Home / 316,212.24-436,367.16-172,971.03

Finding the Fourth Proportional to 316,212.24, 436,367.16 and 172,971.03

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Solution

The fourth proportional to 316,212.24, 436,367.16 and 172,971.03 is: 238,696.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,212.24 : 436,367.16 = 172,971.03 : x
  2. Step 2: Convert to fraction form
    316,212.24/436,367.16 = 172,971.03/x
  3. Step 3: Cross multiply
    316,212.24x = 436,367.16 × 172,971.03
  4. Step 4: Simplify right side
    316,212.24x = 75,478,877,123.37
  5. Step 5: Solve for x
    x = 75,478,877,123.37/316,212.24
  6. Step 6: Final answer
    x = 238,696.89

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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.