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Finding the Fourth Proportional to 389,017.98, 536,887.53 and 225,710.46

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Solution

The fourth proportional to 389,017.98, 536,887.53 and 225,710.46 is: 311,505.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,017.98 : 536,887.53 = 225,710.46 : x
  2. Step 2: Convert to fraction form
    389,017.98/536,887.53 = 225,710.46/x
  3. Step 3: Cross multiply
    389,017.98x = 536,887.53 × 225,710.46
  4. Step 4: Simplify right side
    389,017.98x = 121,181,131,364.56
  5. Step 5: Solve for x
    x = 121,181,131,364.56/389,017.98
  6. Step 6: Final answer
    x = 311,505.22

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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.