Home / 280,918.64-387,667.68-153,594.20

Finding the Fourth Proportional to 280,918.64, 387,667.68 and 153,594.20

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Solution

The fourth proportional to 280,918.64, 387,667.68 and 153,594.20 is: 211,959.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,918.64 : 387,667.68 = 153,594.20 : x
  2. Step 2: Convert to fraction form
    280,918.64/387,667.68 = 153,594.20/x
  3. Step 3: Cross multiply
    280,918.64x = 387,667.68 × 153,594.20
  4. Step 4: Simplify right side
    280,918.64x = 59,543,507,175.46
  5. Step 5: Solve for x
    x = 59,543,507,175.46/280,918.64
  6. Step 6: Final answer
    x = 211,959.97

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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.