Home / 211,348.76-317,064.56-78,230.16

Finding the Fourth Proportional to 211,348.76, 317,064.56 and 78,230.16

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Solution

The fourth proportional to 211,348.76, 317,064.56 and 78,230.16 is: 117,360.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,348.76 : 317,064.56 = 78,230.16 : x
  2. Step 2: Convert to fraction form
    211,348.76/317,064.56 = 78,230.16/x
  3. Step 3: Cross multiply
    211,348.76x = 317,064.56 × 78,230.16
  4. Step 4: Simplify right side
    211,348.76x = 24,804,011,259.13
  5. Step 5: Solve for x
    x = 24,804,011,259.13/211,348.76
  6. Step 6: Final answer
    x = 117,360.57

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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.