Home / 282,441.40-389,767.60-153,378.72

Finding the Fourth Proportional to 282,441.40, 389,767.60 and 153,378.72

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Solution

The fourth proportional to 282,441.40, 389,767.60 and 153,378.72 is: 211,661.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,441.40 : 389,767.60 = 153,378.72 : x
  2. Step 2: Convert to fraction form
    282,441.40/389,767.60 = 153,378.72/x
  3. Step 3: Cross multiply
    282,441.40x = 389,767.60 × 153,378.72
  4. Step 4: Simplify right side
    282,441.40x = 59,782,055,585.47
  5. Step 5: Solve for x
    x = 59,782,055,585.47/282,441.40
  6. Step 6: Final answer
    x = 211,661.80

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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.