Home / 280,684.26-387,350.10-153,368.28

Finding the Fourth Proportional to 280,684.26, 387,350.10 and 153,368.28

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Solution

The fourth proportional to 280,684.26, 387,350.10 and 153,368.28 is: 211,651.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,684.26 : 387,350.10 = 153,368.28 : x
  2. Step 2: Convert to fraction form
    280,684.26/387,350.10 = 153,368.28/x
  3. Step 3: Cross multiply
    280,684.26x = 387,350.10 × 153,368.28
  4. Step 4: Simplify right side
    280,684.26x = 59,407,218,594.83
  5. Step 5: Solve for x
    x = 59,407,218,594.83/280,684.26
  6. Step 6: Final answer
    x = 211,651.41

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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.