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Finding the Fourth Proportional to 210,010.70, 314,934.15 and 91,601.30

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Solution

The fourth proportional to 210,010.70, 314,934.15 and 91,601.30 is: 137,366.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,010.70 : 314,934.15 = 91,601.30 : x
  2. Step 2: Convert to fraction form
    210,010.70/314,934.15 = 91,601.30/x
  3. Step 3: Cross multiply
    210,010.70x = 314,934.15 × 91,601.30
  4. Step 4: Simplify right side
    210,010.70x = 28,848,377,554.40
  5. Step 5: Solve for x
    x = 28,848,377,554.40/210,010.70
  6. Step 6: Final answer
    x = 137,366.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.