Home / 303,669.90-455,634.45-145,817.10

Finding the Fourth Proportional to 303,669.90, 455,634.45 and 145,817.10

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Solution

The fourth proportional to 303,669.90, 455,634.45 and 145,817.10 is: 218,787.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,669.90 : 455,634.45 = 145,817.10 : x
  2. Step 2: Convert to fraction form
    303,669.90/455,634.45 = 145,817.10/x
  3. Step 3: Cross multiply
    303,669.90x = 455,634.45 × 145,817.10
  4. Step 4: Simplify right side
    303,669.90x = 66,439,294,159.10
  5. Step 5: Solve for x
    x = 66,439,294,159.10/303,669.90
  6. Step 6: Final answer
    x = 218,787.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.