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Finding the Fourth Proportional to 432,159.79, 648,234.48 and 112,283.35

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Solution

The fourth proportional to 432,159.79, 648,234.48 and 112,283.35 is: 168,423.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,159.79 : 648,234.48 = 112,283.35 : x
  2. Step 2: Convert to fraction form
    432,159.79/648,234.48 = 112,283.35/x
  3. Step 3: Cross multiply
    432,159.79x = 648,234.48 × 112,283.35
  4. Step 4: Simplify right side
    432,159.79x = 72,785,938,999.91
  5. Step 5: Solve for x
    x = 72,785,938,999.91/432,159.79
  6. Step 6: Final answer
    x = 168,423.67

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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.