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Finding the Fourth Proportional to 373,658.76, 515,648.34 and 210,302.10

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Solution

The fourth proportional to 373,658.76, 515,648.34 and 210,302.10 is: 290,216.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,658.76 : 515,648.34 = 210,302.10 : x
  2. Step 2: Convert to fraction form
    373,658.76/515,648.34 = 210,302.10/x
  3. Step 3: Cross multiply
    373,658.76x = 515,648.34 × 210,302.10
  4. Step 4: Simplify right side
    373,658.76x = 108,441,928,763.51
  5. Step 5: Solve for x
    x = 108,441,928,763.51/373,658.76
  6. Step 6: Final answer
    x = 290,216.48

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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.