Home / 237,330.72-327,515.20-128,434.98

Finding the Fourth Proportional to 237,330.72, 327,515.20 and 128,434.98

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Solution

The fourth proportional to 237,330.72, 327,515.20 and 128,434.98 is: 177,239.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,330.72 : 327,515.20 = 128,434.98 : x
  2. Step 2: Convert to fraction form
    237,330.72/327,515.20 = 128,434.98/x
  3. Step 3: Cross multiply
    237,330.72x = 327,515.20 × 128,434.98
  4. Step 4: Simplify right side
    237,330.72x = 42,064,406,612.43
  5. Step 5: Solve for x
    x = 42,064,406,612.43/237,330.72
  6. Step 6: Final answer
    x = 177,239.62

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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.