Home / 404,912.20-607,368.30-142,256.20

Finding the Fourth Proportional to 404,912.20, 607,368.30 and 142,256.20

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Solution

The fourth proportional to 404,912.20, 607,368.30 and 142,256.20 is: 213,384.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,912.20 : 607,368.30 = 142,256.20 : x
  2. Step 2: Convert to fraction form
    404,912.20/607,368.30 = 142,256.20/x
  3. Step 3: Cross multiply
    404,912.20x = 607,368.30 × 142,256.20
  4. Step 4: Simplify right side
    404,912.20x = 86,401,906,358.46
  5. Step 5: Solve for x
    x = 86,401,906,358.46/404,912.20
  6. Step 6: Final answer
    x = 213,384.30

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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.