Home / 279,872.21-386,225.42-152,547.50

Finding the Fourth Proportional to 279,872.21, 386,225.42 and 152,547.50

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Solution

The fourth proportional to 279,872.21, 386,225.42 and 152,547.50 is: 210,516.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,872.21 : 386,225.42 = 152,547.50 : x
  2. Step 2: Convert to fraction form
    279,872.21/386,225.42 = 152,547.50/x
  3. Step 3: Cross multiply
    279,872.21x = 386,225.42 × 152,547.50
  4. Step 4: Simplify right side
    279,872.21x = 58,917,722,460.28
  5. Step 5: Solve for x
    x = 58,917,722,460.28/279,872.21
  6. Step 6: Final answer
    x = 210,516.51

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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.