Home / 373,261.50-515,113.83-212,123.34

Finding the Fourth Proportional to 373,261.50, 515,113.83 and 212,123.34

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Solution

The fourth proportional to 373,261.50, 515,113.83 and 212,123.34 is: 292,737.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,261.50 : 515,113.83 = 212,123.34 : x
  2. Step 2: Convert to fraction form
    373,261.50/515,113.83 = 212,123.34/x
  3. Step 3: Cross multiply
    373,261.50x = 515,113.83 × 212,123.34
  4. Step 4: Simplify right side
    373,261.50x = 109,267,666,099.79
  5. Step 5: Solve for x
    x = 109,267,666,099.79/373,261.50
  6. Step 6: Final answer
    x = 292,737.57

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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.