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Finding the Fourth Proportional to 237,840.50, 328,212.77 and 130,406.87

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Solution

The fourth proportional to 237,840.50, 328,212.77 and 130,406.87 is: 179,957.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,840.50 : 328,212.77 = 130,406.87 : x
  2. Step 2: Convert to fraction form
    237,840.50/328,212.77 = 130,406.87/x
  3. Step 3: Cross multiply
    237,840.50x = 328,212.77 × 130,406.87
  4. Step 4: Simplify right side
    237,840.50x = 42,801,197,736.63
  5. Step 5: Solve for x
    x = 42,801,197,736.63/237,840.50
  6. Step 6: Final answer
    x = 179,957.57

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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.