Home / 257,219.40-354,962.70-142,505.49

Finding the Fourth Proportional to 257,219.40, 354,962.70 and 142,505.49

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Solution

The fourth proportional to 257,219.40, 354,962.70 and 142,505.49 is: 196,657.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,219.40 : 354,962.70 = 142,505.49 : x
  2. Step 2: Convert to fraction form
    257,219.40/354,962.70 = 142,505.49/x
  3. Step 3: Cross multiply
    257,219.40x = 354,962.70 × 142,505.49
  4. Step 4: Simplify right side
    257,219.40x = 50,584,133,495.22
  5. Step 5: Solve for x
    x = 50,584,133,495.22/257,219.40
  6. Step 6: Final answer
    x = 196,657.54

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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.