Home / 282,345.49-389,643.55-153,289.41

Finding the Fourth Proportional to 282,345.49, 389,643.55 and 153,289.41

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Solution

The fourth proportional to 282,345.49, 389,643.55 and 153,289.41 is: 211,543.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,345.49 : 389,643.55 = 153,289.41 : x
  2. Step 2: Convert to fraction form
    282,345.49/389,643.55 = 153,289.41/x
  3. Step 3: Cross multiply
    282,345.49x = 389,643.55 × 153,289.41
  4. Step 4: Simplify right side
    282,345.49x = 59,728,228,418.14
  5. Step 5: Solve for x
    x = 59,728,228,418.14/282,345.49
  6. Step 6: Final answer
    x = 211,543.06

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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.