Home / 256,144.75-353,483.40-142,967.50

Finding the Fourth Proportional to 256,144.75, 353,483.40 and 142,967.50

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Solution

The fourth proportional to 256,144.75, 353,483.40 and 142,967.50 is: 197,297.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,144.75 : 353,483.40 = 142,967.50 : x
  2. Step 2: Convert to fraction form
    256,144.75/353,483.40 = 142,967.50/x
  3. Step 3: Cross multiply
    256,144.75x = 353,483.40 × 142,967.50
  4. Step 4: Simplify right side
    256,144.75x = 50,536,637,989.50
  5. Step 5: Solve for x
    x = 50,536,637,989.50/256,144.75
  6. Step 6: Final answer
    x = 197,297.18

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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.