Home / 280,613.58-387,255.24-153,297.36

Finding the Fourth Proportional to 280,613.58, 387,255.24 and 153,297.36

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Solution

The fourth proportional to 280,613.58, 387,255.24 and 153,297.36 is: 211,555.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,613.58 : 387,255.24 = 153,297.36 : x
  2. Step 2: Convert to fraction form
    280,613.58/387,255.24 = 153,297.36/x
  3. Step 3: Cross multiply
    280,613.58x = 387,255.24 × 153,297.36
  4. Step 4: Simplify right side
    280,613.58x = 59,365,205,938.17
  5. Step 5: Solve for x
    x = 59,365,205,938.17/280,613.58
  6. Step 6: Final answer
    x = 211,555.00

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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.