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Finding the Fourth Proportional to 210,224.71, 315,149.59 and 77,073.94

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Solution

The fourth proportional to 210,224.71, 315,149.59 and 77,073.94 is: 115,542.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,224.71 : 315,149.59 = 77,073.94 : x
  2. Step 2: Convert to fraction form
    210,224.71/315,149.59 = 77,073.94/x
  3. Step 3: Cross multiply
    210,224.71x = 315,149.59 × 77,073.94
  4. Step 4: Simplify right side
    210,224.71x = 24,289,820,590.68
  5. Step 5: Solve for x
    x = 24,289,820,590.68/210,224.71
  6. Step 6: Final answer
    x = 115,542.18

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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.