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Finding the Fourth Proportional to 553,857.18, 830,792.43 and 154,473.63

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Solution

The fourth proportional to 553,857.18, 830,792.43 and 154,473.63 is: 231,712.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,857.18 : 830,792.43 = 154,473.63 : x
  2. Step 2: Convert to fraction form
    553,857.18/830,792.43 = 154,473.63/x
  3. Step 3: Cross multiply
    553,857.18x = 830,792.43 × 154,473.63
  4. Step 4: Simplify right side
    553,857.18x = 128,335,522,438.62
  5. Step 5: Solve for x
    x = 128,335,522,438.62/553,857.18
  6. Step 6: Final answer
    x = 231,712.30

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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.