Home / 373,772.22-515,772.40-208,187.51

Finding the Fourth Proportional to 373,772.22, 515,772.40 and 208,187.51

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Solution

The fourth proportional to 373,772.22, 515,772.40 and 208,187.51 is: 287,280.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,772.22 : 515,772.40 = 208,187.51 : x
  2. Step 2: Convert to fraction form
    373,772.22/515,772.40 = 208,187.51/x
  3. Step 3: Cross multiply
    373,772.22x = 515,772.40 × 208,187.51
  4. Step 4: Simplify right side
    373,772.22x = 107,377,373,630.01
  5. Step 5: Solve for x
    x = 107,377,373,630.01/373,772.22
  6. Step 6: Final answer
    x = 287,280.24

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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.