Home / 313,931.49-433,385.73-212,493.03

Finding the Fourth Proportional to 313,931.49, 433,385.73 and 212,493.03

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Solution

The fourth proportional to 313,931.49, 433,385.73 and 212,493.03 is: 293,348.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,931.49 : 433,385.73 = 212,493.03 : x
  2. Step 2: Convert to fraction form
    313,931.49/433,385.73 = 212,493.03/x
  3. Step 3: Cross multiply
    313,931.49x = 433,385.73 × 212,493.03
  4. Step 4: Simplify right side
    313,931.49x = 92,091,446,926.46
  5. Step 5: Solve for x
    x = 92,091,446,926.46/313,931.49
  6. Step 6: Final answer
    x = 293,348.87

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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.