Home / 211,349.08-317,068.38-78,230.44

Finding the Fourth Proportional to 211,349.08, 317,068.38 and 78,230.44

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Solution

The fourth proportional to 211,349.08, 317,068.38 and 78,230.44 is: 117,362.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,349.08 : 317,068.38 = 78,230.44 : x
  2. Step 2: Convert to fraction form
    211,349.08/317,068.38 = 78,230.44/x
  3. Step 3: Cross multiply
    211,349.08x = 317,068.38 × 78,230.44
  4. Step 4: Simplify right side
    211,349.08x = 24,804,398,877.49
  5. Step 5: Solve for x
    x = 24,804,398,877.49/211,349.08
  6. Step 6: Final answer
    x = 117,362.23

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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.