Home / 353,412.82-487,673.28-210,145.18

Finding the Fourth Proportional to 353,412.82, 487,673.28 and 210,145.18

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Solution

The fourth proportional to 353,412.82, 487,673.28 and 210,145.18 is: 289,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,412.82 : 487,673.28 = 210,145.18 : x
  2. Step 2: Convert to fraction form
    353,412.82/487,673.28 = 210,145.18/x
  3. Step 3: Cross multiply
    353,412.82x = 487,673.28 × 210,145.18
  4. Step 4: Simplify right side
    353,412.82x = 102,482,189,206.79
  5. Step 5: Solve for x
    x = 102,482,189,206.79/353,412.82
  6. Step 6: Final answer
    x = 289,978.70

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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.