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Finding the Fourth Proportional to 356,300.30, 534,485.64 and 103,583.12

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Solution

The fourth proportional to 356,300.30, 534,485.64 and 103,583.12 is: 155,384.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,300.30 : 534,485.64 = 103,583.12 : x
  2. Step 2: Convert to fraction form
    356,300.30/534,485.64 = 103,583.12/x
  3. Step 3: Cross multiply
    356,300.30x = 534,485.64 × 103,583.12
  4. Step 4: Simplify right side
    356,300.30x = 55,363,690,186.40
  5. Step 5: Solve for x
    x = 55,363,690,186.40/356,300.30
  6. Step 6: Final answer
    x = 155,384.91

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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.