Home / 211,692.48-317,088.91-143,345.56

Finding the Fourth Proportional to 211,692.48, 317,088.91 and 143,345.56

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Solution

The fourth proportional to 211,692.48, 317,088.91 and 143,345.56 is: 214,713.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,692.48 : 317,088.91 = 143,345.56 : x
  2. Step 2: Convert to fraction form
    211,692.48/317,088.91 = 143,345.56/x
  3. Step 3: Cross multiply
    211,692.48x = 317,088.91 × 143,345.56
  4. Step 4: Simplify right side
    211,692.48x = 45,453,287,373.74
  5. Step 5: Solve for x
    x = 45,453,287,373.74/211,692.48
  6. Step 6: Final answer
    x = 214,713.76

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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.