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Finding the Fourth Proportional to 354,218.40, 532,364.40 and 308,599.20

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Solution

The fourth proportional to 354,218.40, 532,364.40 and 308,599.20 is: 463,802.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,218.40 : 532,364.40 = 308,599.20 : x
  2. Step 2: Convert to fraction form
    354,218.40/532,364.40 = 308,599.20/x
  3. Step 3: Cross multiply
    354,218.40x = 532,364.40 × 308,599.20
  4. Step 4: Simplify right side
    354,218.40x = 164,287,227,948.48
  5. Step 5: Solve for x
    x = 164,287,227,948.48/354,218.40
  6. Step 6: Final answer
    x = 463,802.07

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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.