Home / 258,220.64-356,377.90-145,043.36

Finding the Fourth Proportional to 258,220.64, 356,377.90 and 145,043.36

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Solution

The fourth proportional to 258,220.64, 356,377.90 and 145,043.36 is: 200,178.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,220.64 : 356,377.90 = 145,043.36 : x
  2. Step 2: Convert to fraction form
    258,220.64/356,377.90 = 145,043.36/x
  3. Step 3: Cross multiply
    258,220.64x = 356,377.90 × 145,043.36
  4. Step 4: Simplify right side
    258,220.64x = 51,690,248,045.74
  5. Step 5: Solve for x
    x = 51,690,248,045.74/258,220.64
  6. Step 6: Final answer
    x = 200,178.61

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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.