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Finding the Fourth Proportional to 432,130.80, 648,001.80 and 165,802.80

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Solution

The fourth proportional to 432,130.80, 648,001.80 and 165,802.80 is: 248,629.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,130.80 : 648,001.80 = 165,802.80 : x
  2. Step 2: Convert to fraction form
    432,130.80/648,001.80 = 165,802.80/x
  3. Step 3: Cross multiply
    432,130.80x = 648,001.80 × 165,802.80
  4. Step 4: Simplify right side
    432,130.80x = 107,440,512,845.04
  5. Step 5: Solve for x
    x = 107,440,512,845.04/432,130.80
  6. Step 6: Final answer
    x = 248,629.61

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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.