Home / 219,273.72-302,599.98-128,631.22

Finding the Fourth Proportional to 219,273.72, 302,599.98 and 128,631.22

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Solution

The fourth proportional to 219,273.72, 302,599.98 and 128,631.22 is: 177,512.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,273.72 : 302,599.98 = 128,631.22 : x
  2. Step 2: Convert to fraction form
    219,273.72/302,599.98 = 128,631.22/x
  3. Step 3: Cross multiply
    219,273.72x = 302,599.98 × 128,631.22
  4. Step 4: Simplify right side
    219,273.72x = 38,923,804,599.38
  5. Step 5: Solve for x
    x = 38,923,804,599.38/219,273.72
  6. Step 6: Final answer
    x = 177,512.40

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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.