Home / 432,274.60-648,411.87-221,778.28

Finding the Fourth Proportional to 432,274.60, 648,411.87 and 221,778.28

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Solution

The fourth proportional to 432,274.60, 648,411.87 and 221,778.28 is: 332,667.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,274.60 : 648,411.87 = 221,778.28 : x
  2. Step 2: Convert to fraction form
    432,274.60/648,411.87 = 221,778.28/x
  3. Step 3: Cross multiply
    432,274.60x = 648,411.87 × 221,778.28
  4. Step 4: Simplify right side
    432,274.60x = 143,803,669,260.18
  5. Step 5: Solve for x
    x = 143,803,669,260.18/432,274.60
  6. Step 6: Final answer
    x = 332,667.40

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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.