Home / 280,549.73-387,158.01-153,225.33

Finding the Fourth Proportional to 280,549.73, 387,158.01 and 153,225.33

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Solution

The fourth proportional to 280,549.73, 387,158.01 and 153,225.33 is: 211,450.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,549.73 : 387,158.01 = 153,225.33 : x
  2. Step 2: Convert to fraction form
    280,549.73/387,158.01 = 153,225.33/x
  3. Step 3: Cross multiply
    280,549.73x = 387,158.01 × 153,225.33
  4. Step 4: Simplify right side
    280,549.73x = 59,322,413,844.39
  5. Step 5: Solve for x
    x = 59,322,413,844.39/280,549.73
  6. Step 6: Final answer
    x = 211,450.62

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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.