Home / 296,810.43-445,049.09-128,225.55

Finding the Fourth Proportional to 296,810.43, 445,049.09 and 128,225.55

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Solution

The fourth proportional to 296,810.43, 445,049.09 and 128,225.55 is: 192,266.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,810.43 : 445,049.09 = 128,225.55 : x
  2. Step 2: Convert to fraction form
    296,810.43/445,049.09 = 128,225.55/x
  3. Step 3: Cross multiply
    296,810.43x = 445,049.09 × 128,225.55
  4. Step 4: Simplify right side
    296,810.43x = 57,066,663,701.12
  5. Step 5: Solve for x
    x = 57,066,663,701.12/296,810.43
  6. Step 6: Final answer
    x = 192,266.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.