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Finding the Fourth Proportional to 311,585.22, 429,483.87 and 243,483.84

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Solution

The fourth proportional to 311,585.22, 429,483.87 and 243,483.84 is: 335,614.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,585.22 : 429,483.87 = 243,483.84 : x
  2. Step 2: Convert to fraction form
    311,585.22/429,483.87 = 243,483.84/x
  3. Step 3: Cross multiply
    311,585.22x = 429,483.87 × 243,483.84
  4. Step 4: Simplify right side
    311,585.22x = 104,572,381,885.66
  5. Step 5: Solve for x
    x = 104,572,381,885.66/311,585.22
  6. Step 6: Final answer
    x = 335,614.06

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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.