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Finding the Fourth Proportional to 432,262.68, 648,393.75 and 240,259.20

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Solution

The fourth proportional to 432,262.68, 648,393.75 and 240,259.20 is: 360,388.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,262.68 : 648,393.75 = 240,259.20 : x
  2. Step 2: Convert to fraction form
    432,262.68/648,393.75 = 240,259.20/x
  3. Step 3: Cross multiply
    432,262.68x = 648,393.75 × 240,259.20
  4. Step 4: Simplify right side
    432,262.68x = 155,782,563,660
  5. Step 5: Solve for x
    x = 155,782,563,660/432,262.68
  6. Step 6: Final answer
    x = 360,388.65

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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.