Home / 302,420.96-453,113.04-213,515.36

Finding the Fourth Proportional to 302,420.96, 453,113.04 and 213,515.36

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Solution

The fourth proportional to 302,420.96, 453,113.04 and 213,515.36 is: 319,907.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,420.96 : 453,113.04 = 213,515.36 : x
  2. Step 2: Convert to fraction form
    302,420.96/453,113.04 = 213,515.36/x
  3. Step 3: Cross multiply
    302,420.96x = 453,113.04 × 213,515.36
  4. Step 4: Simplify right side
    302,420.96x = 96,746,593,856.29
  5. Step 5: Solve for x
    x = 96,746,593,856.29/302,420.96
  6. Step 6: Final answer
    x = 319,907.04

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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.