Home / 279,750.09-386,044.29-152,426.64

Finding the Fourth Proportional to 279,750.09, 386,044.29 and 152,426.64

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Solution

The fourth proportional to 279,750.09, 386,044.29 and 152,426.64 is: 210,342.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,750.09 : 386,044.29 = 152,426.64 : x
  2. Step 2: Convert to fraction form
    279,750.09/386,044.29 = 152,426.64/x
  3. Step 3: Cross multiply
    279,750.09x = 386,044.29 × 152,426.64
  4. Step 4: Simplify right side
    279,750.09x = 58,843,434,015.89
  5. Step 5: Solve for x
    x = 58,843,434,015.89/279,750.09
  6. Step 6: Final answer
    x = 210,342.86

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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.