Home / 316,539.36-436,825.59-173,312.73

Finding the Fourth Proportional to 316,539.36, 436,825.59 and 173,312.73

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Solution

The fourth proportional to 316,539.36, 436,825.59 and 173,312.73 is: 239,172.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,539.36 : 436,825.59 = 173,312.73 : x
  2. Step 2: Convert to fraction form
    316,539.36/436,825.59 = 173,312.73/x
  3. Step 3: Cross multiply
    316,539.36x = 436,825.59 × 173,312.73
  4. Step 4: Simplify right side
    316,539.36x = 75,707,435,536.76
  5. Step 5: Solve for x
    x = 75,707,435,536.76/316,539.36
  6. Step 6: Final answer
    x = 239,172.26

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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.