Home / 219,244.32-302,505.84-128,595.60

Finding the Fourth Proportional to 219,244.32, 302,505.84 and 128,595.60

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Solution

The fourth proportional to 219,244.32, 302,505.84 and 128,595.60 is: 177,431.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,244.32 : 302,505.84 = 128,595.60 : x
  2. Step 2: Convert to fraction form
    219,244.32/302,505.84 = 128,595.60/x
  3. Step 3: Cross multiply
    219,244.32x = 302,505.84 × 128,595.60
  4. Step 4: Simplify right side
    219,244.32x = 38,900,919,998.30
  5. Step 5: Solve for x
    x = 38,900,919,998.30/219,244.32
  6. Step 6: Final answer
    x = 177,431.83

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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.