Home / 211,384.65-317,083.05-53,612.85

Finding the Fourth Proportional to 211,384.65, 317,083.05 and 53,612.85

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Solution

The fourth proportional to 211,384.65, 317,083.05 and 53,612.85 is: 80,420.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,384.65 : 317,083.05 = 53,612.85 : x
  2. Step 2: Convert to fraction form
    211,384.65/317,083.05 = 53,612.85/x
  3. Step 3: Cross multiply
    211,384.65x = 317,083.05 × 53,612.85
  4. Step 4: Simplify right side
    211,384.65x = 16,999,725,997.19
  5. Step 5: Solve for x
    x = 16,999,725,997.19/211,384.65
  6. Step 6: Final answer
    x = 80,420.82

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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.