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Finding the Third Proportional to 367,518 and 553,428

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Solution

The third proportional to 367,518 and 553,428 is: 833,381.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,518 : 553,428 = 553,428 : x
  2. Step 2: Convert to fraction form
    367,518/553,428 = 553,428/x
  3. Step 3: Cross multiply
    367,518x = 553,428 × 553,428
  4. Step 4: Simplify right side
    367,518x = 306,282,551,184
  5. Step 5: Solve for x
    x = 306,282,551,184/367,518
  6. Step 6: Final answer
    x = 833,381.09

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.