Home / 279,567.12-385,818.84-210,533

Finding the Fourth Proportional to 279,567.12, 385,818.84 and 210,533

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Solution

The fourth proportional to 279,567.12, 385,818.84 and 210,533 is: 290,547.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,567.12 : 385,818.84 = 210,533 : x
  2. Step 2: Convert to fraction form
    279,567.12/385,818.84 = 210,533/x
  3. Step 3: Cross multiply
    279,567.12x = 385,818.84 × 210,533
  4. Step 4: Simplify right side
    279,567.12x = 81,227,597,841.72
  5. Step 5: Solve for x
    x = 81,227,597,841.72/279,567.12
  6. Step 6: Final answer
    x = 290,547.75

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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.