Home / 224,206.20-309,389.58-128,699.64

Finding the Fourth Proportional to 224,206.20, 309,389.58 and 128,699.64

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Solution

The fourth proportional to 224,206.20, 309,389.58 and 128,699.64 is: 177,596.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,206.20 : 309,389.58 = 128,699.64 : x
  2. Step 2: Convert to fraction form
    224,206.20/309,389.58 = 128,699.64/x
  3. Step 3: Cross multiply
    224,206.20x = 309,389.58 × 128,699.64
  4. Step 4: Simplify right side
    224,206.20x = 39,818,327,565.75
  5. Step 5: Solve for x
    x = 39,818,327,565.75/224,206.20
  6. Step 6: Final answer
    x = 177,596.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.