Home / 209,828.20-314,742.30-201,663.40

Finding the Fourth Proportional to 209,828.20, 314,742.30 and 201,663.40

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Solution

The fourth proportional to 209,828.20, 314,742.30 and 201,663.40 is: 302,495.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,828.20 : 314,742.30 = 201,663.40 : x
  2. Step 2: Convert to fraction form
    209,828.20/314,742.30 = 201,663.40/x
  3. Step 3: Cross multiply
    209,828.20x = 314,742.30 × 201,663.40
  4. Step 4: Simplify right side
    209,828.20x = 63,472,002,341.82
  5. Step 5: Solve for x
    x = 63,472,002,341.82/209,828.20
  6. Step 6: Final answer
    x = 302,495.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.