Home / 282,147.60-389,362.89-153,085.56

Finding the Fourth Proportional to 282,147.60, 389,362.89 and 153,085.56

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Solution

The fourth proportional to 282,147.60, 389,362.89 and 153,085.56 is: 211,257.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,147.60 : 389,362.89 = 153,085.56 : x
  2. Step 2: Convert to fraction form
    282,147.60/389,362.89 = 153,085.56/x
  3. Step 3: Cross multiply
    282,147.60x = 389,362.89 × 153,085.56
  4. Step 4: Simplify right side
    282,147.60x = 59,605,834,643.99
  5. Step 5: Solve for x
    x = 59,605,834,643.99/282,147.60
  6. Step 6: Final answer
    x = 211,257.63

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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.