Home / 285,486.12-394,155.72-183,557.34

Finding the Fourth Proportional to 285,486.12, 394,155.72 and 183,557.34

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Solution

The fourth proportional to 285,486.12, 394,155.72 and 183,557.34 is: 253,428.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,486.12 : 394,155.72 = 183,557.34 : x
  2. Step 2: Convert to fraction form
    285,486.12/394,155.72 = 183,557.34/x
  3. Step 3: Cross multiply
    285,486.12x = 394,155.72 × 183,557.34
  4. Step 4: Simplify right side
    285,486.12x = 72,350,175,508.98
  5. Step 5: Solve for x
    x = 72,350,175,508.98/285,486.12
  6. Step 6: Final answer
    x = 253,428.00

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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.