Home / 279,740.72-386,041.96-152,417.36

Finding the Fourth Proportional to 279,740.72, 386,041.96 and 152,417.36

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Solution

The fourth proportional to 279,740.72, 386,041.96 and 152,417.36 is: 210,335.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,740.72 : 386,041.96 = 152,417.36 : x
  2. Step 2: Convert to fraction form
    279,740.72/386,041.96 = 152,417.36/x
  3. Step 3: Cross multiply
    279,740.72x = 386,041.96 × 152,417.36
  4. Step 4: Simplify right side
    279,740.72x = 58,839,496,392.43
  5. Step 5: Solve for x
    x = 58,839,496,392.43/279,740.72
  6. Step 6: Final answer
    x = 210,335.83

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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.