Home / 256,710.48-354,259.31-143,533.23

Finding the Fourth Proportional to 256,710.48, 354,259.31 and 143,533.23

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Solution

The fourth proportional to 256,710.48, 354,259.31 and 143,533.23 is: 198,075.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,710.48 : 354,259.31 = 143,533.23 : x
  2. Step 2: Convert to fraction form
    256,710.48/354,259.31 = 143,533.23/x
  3. Step 3: Cross multiply
    256,710.48x = 354,259.31 × 143,533.23
  4. Step 4: Simplify right side
    256,710.48x = 50,847,983,021.87
  5. Step 5: Solve for x
    x = 50,847,983,021.87/256,710.48
  6. Step 6: Final answer
    x = 198,075.21

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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.