Home / 384,289.50-530,279.21-223,113.06

Finding the Fourth Proportional to 384,289.50, 530,279.21 and 223,113.06

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Solution

The fourth proportional to 384,289.50, 530,279.21 and 223,113.06 is: 307,872.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,289.50 : 530,279.21 = 223,113.06 : x
  2. Step 2: Convert to fraction form
    384,289.50/530,279.21 = 223,113.06/x
  3. Step 3: Cross multiply
    384,289.50x = 530,279.21 × 223,113.06
  4. Step 4: Simplify right side
    384,289.50x = 118,312,216,081.92
  5. Step 5: Solve for x
    x = 118,312,216,081.92/384,289.50
  6. Step 6: Final answer
    x = 307,872.62

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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.