Home / 311,113.28-429,368.52-190,334.96

Finding the Fourth Proportional to 311,113.28, 429,368.52 and 190,334.96

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Solution

The fourth proportional to 311,113.28, 429,368.52 and 190,334.96 is: 262,681.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,113.28 : 429,368.52 = 190,334.96 : x
  2. Step 2: Convert to fraction form
    311,113.28/429,368.52 = 190,334.96/x
  3. Step 3: Cross multiply
    311,113.28x = 429,368.52 × 190,334.96
  4. Step 4: Simplify right side
    311,113.28x = 81,723,840,079.46
  5. Step 5: Solve for x
    x = 81,723,840,079.46/311,113.28
  6. Step 6: Final answer
    x = 262,681.94

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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.