Home / 211,522.08-317,156.34-99,226.92

Finding the Fourth Proportional to 211,522.08, 317,156.34 and 99,226.92

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Solution

The fourth proportional to 211,522.08, 317,156.34 and 99,226.92 is: 148,780.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,522.08 : 317,156.34 = 99,226.92 : x
  2. Step 2: Convert to fraction form
    211,522.08/317,156.34 = 99,226.92/x
  3. Step 3: Cross multiply
    211,522.08x = 317,156.34 × 99,226.92
  4. Step 4: Simplify right side
    211,522.08x = 31,470,446,776.67
  5. Step 5: Solve for x
    x = 31,470,446,776.67/211,522.08
  6. Step 6: Final answer
    x = 148,780.91

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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.