Home / 262,128.30-393,484.05-162,401.10

Finding the Fourth Proportional to 262,128.30, 393,484.05 and 162,401.10

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Solution

The fourth proportional to 262,128.30, 393,484.05 and 162,401.10 is: 243,782.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,128.30 : 393,484.05 = 162,401.10 : x
  2. Step 2: Convert to fraction form
    262,128.30/393,484.05 = 162,401.10/x
  3. Step 3: Cross multiply
    262,128.30x = 393,484.05 × 162,401.10
  4. Step 4: Simplify right side
    262,128.30x = 63,902,242,552.46
  5. Step 5: Solve for x
    x = 63,902,242,552.46/262,128.30
  6. Step 6: Final answer
    x = 243,782.31

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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.