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Finding the Fourth Proportional to 553,433.88, 830,068.20 and 154,033.02

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Solution

The fourth proportional to 553,433.88, 830,068.20 and 154,033.02 is: 231,026.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,433.88 : 830,068.20 = 154,033.02 : x
  2. Step 2: Convert to fraction form
    553,433.88/830,068.20 = 154,033.02/x
  3. Step 3: Cross multiply
    553,433.88x = 830,068.20 × 154,033.02
  4. Step 4: Simplify right side
    553,433.88x = 127,857,911,651.96
  5. Step 5: Solve for x
    x = 127,857,911,651.96/553,433.88
  6. Step 6: Final answer
    x = 231,026.54

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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.