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Finding the Fourth Proportional to 316,555.68, 436,846.80 and 173,315.67

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Solution

The fourth proportional to 316,555.68, 436,846.80 and 173,315.67 is: 239,175.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,555.68 : 436,846.80 = 173,315.67 : x
  2. Step 2: Convert to fraction form
    316,555.68/436,846.80 = 173,315.67/x
  3. Step 3: Cross multiply
    316,555.68x = 436,846.80 × 173,315.67
  4. Step 4: Simplify right side
    316,555.68x = 75,712,395,829.36
  5. Step 5: Solve for x
    x = 75,712,395,829.36/316,555.68
  6. Step 6: Final answer
    x = 239,175.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.