Home / 314,723.70-434,320.65-187,404.66

Finding the Fourth Proportional to 314,723.70, 434,320.65 and 187,404.66

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Solution

The fourth proportional to 314,723.70, 434,320.65 and 187,404.66 is: 258,619.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,723.70 : 434,320.65 = 187,404.66 : x
  2. Step 2: Convert to fraction form
    314,723.70/434,320.65 = 187,404.66/x
  3. Step 3: Cross multiply
    314,723.70x = 434,320.65 × 187,404.66
  4. Step 4: Simplify right side
    314,723.70x = 81,393,713,744.23
  5. Step 5: Solve for x
    x = 81,393,713,744.23/314,723.70
  6. Step 6: Final answer
    x = 258,619.59

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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.