Home / 373,835.40-515,886.22-212,686.98

Finding the Fourth Proportional to 373,835.40, 515,886.22 and 212,686.98

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Solution

The fourth proportional to 373,835.40, 515,886.22 and 212,686.98 is: 293,504.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,835.40 : 515,886.22 = 212,686.98 : x
  2. Step 2: Convert to fraction form
    373,835.40/515,886.22 = 212,686.98/x
  3. Step 3: Cross multiply
    373,835.40x = 515,886.22 × 212,686.98
  4. Step 4: Simplify right side
    373,835.40x = 109,722,282,155.42
  5. Step 5: Solve for x
    x = 109,722,282,155.42/373,835.40
  6. Step 6: Final answer
    x = 293,504.26

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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.