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Finding the Fourth Proportional to 386,182.36, 578,519.40 and 183,490.00

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Solution

The fourth proportional to 386,182.36, 578,519.40 and 183,490.00 is: 274,876.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,182.36 : 578,519.40 = 183,490.00 : x
  2. Step 2: Convert to fraction form
    386,182.36/578,519.40 = 183,490.00/x
  3. Step 3: Cross multiply
    386,182.36x = 578,519.40 × 183,490.00
  4. Step 4: Simplify right side
    386,182.36x = 106,152,523,259.70
  5. Step 5: Solve for x
    x = 106,152,523,259.70/386,182.36
  6. Step 6: Final answer
    x = 274,876.68

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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.