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Finding the Fourth Proportional to 318,179.84, 439,088.48 and 174,942.32

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Solution

The fourth proportional to 318,179.84, 439,088.48 and 174,942.32 is: 241,420.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,179.84 : 439,088.48 = 174,942.32 : x
  2. Step 2: Convert to fraction form
    318,179.84/439,088.48 = 174,942.32/x
  3. Step 3: Cross multiply
    318,179.84x = 439,088.48 × 174,942.32
  4. Step 4: Simplify right side
    318,179.84x = 76,815,157,376.47
  5. Step 5: Solve for x
    x = 76,815,157,376.47/318,179.84
  6. Step 6: Final answer
    x = 241,420.57

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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.