Home / 288,522.10-432,005.55-209,206.90

Finding the Fourth Proportional to 288,522.10, 432,005.55 and 209,206.90

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Solution

The fourth proportional to 288,522.10, 432,005.55 and 209,206.90 is: 313,246.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,522.10 : 432,005.55 = 209,206.90 : x
  2. Step 2: Convert to fraction form
    288,522.10/432,005.55 = 209,206.90/x
  3. Step 3: Cross multiply
    288,522.10x = 432,005.55 × 209,206.90
  4. Step 4: Simplify right side
    288,522.10x = 90,378,541,898.30
  5. Step 5: Solve for x
    x = 90,378,541,898.30/288,522.10
  6. Step 6: Final answer
    x = 313,246.51

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1.5x scale

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.