Home / 279,581.20-385,838.26-210,547.04

Finding the Fourth Proportional to 279,581.20, 385,838.26 and 210,547.04

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Solution

The fourth proportional to 279,581.20, 385,838.26 and 210,547.04 is: 290,567.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,581.20 : 385,838.26 = 210,547.04 : x
  2. Step 2: Convert to fraction form
    279,581.20/385,838.26 = 210,547.04/x
  3. Step 3: Cross multiply
    279,581.20x = 385,838.26 × 210,547.04
  4. Step 4: Simplify right side
    279,581.20x = 81,237,103,561.75
  5. Step 5: Solve for x
    x = 81,237,103,561.75/279,581.20
  6. Step 6: Final answer
    x = 290,567.12

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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.