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Finding the Fourth Proportional to 614,938.20, 922,407.30 and 216,029.40

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Solution

The fourth proportional to 614,938.20, 922,407.30 and 216,029.40 is: 324,044.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,938.20 : 922,407.30 = 216,029.40 : x
  2. Step 2: Convert to fraction form
    614,938.20/922,407.30 = 216,029.40/x
  3. Step 3: Cross multiply
    614,938.20x = 922,407.30 × 216,029.40
  4. Step 4: Simplify right side
    614,938.20x = 199,267,095,574.62
  5. Step 5: Solve for x
    x = 199,267,095,574.62/614,938.20
  6. Step 6: Final answer
    x = 324,044.10

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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.