Home / 219,428.72-302,712.28-192,488.12

Finding the Fourth Proportional to 219,428.72, 302,712.28 and 192,488.12

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Solution

The fourth proportional to 219,428.72, 302,712.28 and 192,488.12 is: 265,546.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,428.72 : 302,712.28 = 192,488.12 : x
  2. Step 2: Convert to fraction form
    219,428.72/302,712.28 = 192,488.12/x
  3. Step 3: Cross multiply
    219,428.72x = 302,712.28 × 192,488.12
  4. Step 4: Simplify right side
    219,428.72x = 58,268,517,678.11
  5. Step 5: Solve for x
    x = 58,268,517,678.11/219,428.72
  6. Step 6: Final answer
    x = 265,546.45

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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.