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Finding the Fourth Proportional to 318,700.58, 439,812.44 and 173,510.59

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Solution

The fourth proportional to 318,700.58, 439,812.44 and 173,510.59 is: 239,447.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,700.58 : 439,812.44 = 173,510.59 : x
  2. Step 2: Convert to fraction form
    318,700.58/439,812.44 = 173,510.59/x
  3. Step 3: Cross multiply
    318,700.58x = 439,812.44 × 173,510.59
  4. Step 4: Simplify right side
    318,700.58x = 76,312,112,887.12
  5. Step 5: Solve for x
    x = 76,312,112,887.12/318,700.58
  6. Step 6: Final answer
    x = 239,447.67

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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.