Home / 219,105.28-302,339.28-123,606.40

Finding the Fourth Proportional to 219,105.28, 302,339.28 and 123,606.40

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Solution

The fourth proportional to 219,105.28, 302,339.28 and 123,606.40 is: 170,562.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,105.28 : 302,339.28 = 123,606.40 : x
  2. Step 2: Convert to fraction form
    219,105.28/302,339.28 = 123,606.40/x
  3. Step 3: Cross multiply
    219,105.28x = 302,339.28 × 123,606.40
  4. Step 4: Simplify right side
    219,105.28x = 37,371,069,979.39
  5. Step 5: Solve for x
    x = 37,371,069,979.39/219,105.28
  6. Step 6: Final answer
    x = 170,562.16

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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.