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Finding the Fourth Proportional to 330,093.84, 453,777.82 and 283,985.04

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Solution

The fourth proportional to 330,093.84, 453,777.82 and 283,985.04 is: 390,392.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,093.84 : 453,777.82 = 283,985.04 : x
  2. Step 2: Convert to fraction form
    330,093.84/453,777.82 = 283,985.04/x
  3. Step 3: Cross multiply
    330,093.84x = 453,777.82 × 283,985.04
  4. Step 4: Simplify right side
    330,093.84x = 128,866,112,363.81
  5. Step 5: Solve for x
    x = 128,866,112,363.81/330,093.84
  6. Step 6: Final answer
    x = 390,392.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.