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Finding the Fourth Proportional to 237,900.80, 328,302.60 and 137,298.80

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Solution

The fourth proportional to 237,900.80, 328,302.60 and 137,298.80 is: 189,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,900.80 : 328,302.60 = 137,298.80 : x
  2. Step 2: Convert to fraction form
    237,900.80/328,302.60 = 137,298.80/x
  3. Step 3: Cross multiply
    237,900.80x = 328,302.60 × 137,298.80
  4. Step 4: Simplify right side
    237,900.80x = 45,075,553,016.88
  5. Step 5: Solve for x
    x = 45,075,553,016.88/237,900.80
  6. Step 6: Final answer
    x = 189,472.05

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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.