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Finding the Fourth Proportional to 237,681.80, 328,000.90 and 137,079.80

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Solution

The fourth proportional to 237,681.80, 328,000.90 and 137,079.80 is: 189,170.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,681.80 : 328,000.90 = 137,079.80 : x
  2. Step 2: Convert to fraction form
    237,681.80/328,000.90 = 137,079.80/x
  3. Step 3: Cross multiply
    237,681.80x = 328,000.90 × 137,079.80
  4. Step 4: Simplify right side
    237,681.80x = 44,962,297,771.82
  5. Step 5: Solve for x
    x = 44,962,297,771.82/237,681.80
  6. Step 6: Final answer
    x = 189,170.13

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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.