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Finding the Fourth Proportional to 210,010.99, 314,917.97 and 76,798.10

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Solution

The fourth proportional to 210,010.99, 314,917.97 and 76,798.10 is: 115,161.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,010.99 : 314,917.97 = 76,798.10 : x
  2. Step 2: Convert to fraction form
    210,010.99/314,917.97 = 76,798.10/x
  3. Step 3: Cross multiply
    210,010.99x = 314,917.97 × 76,798.10
  4. Step 4: Simplify right side
    210,010.99x = 24,185,101,751.86
  5. Step 5: Solve for x
    x = 24,185,101,751.86/210,010.99
  6. Step 6: Final answer
    x = 115,161.12

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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.