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Finding the Fourth Proportional to 356,583.40, 492,020.58 and 229,229.80

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Solution

The fourth proportional to 356,583.40, 492,020.58 and 229,229.80 is: 316,295.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,583.40 : 492,020.58 = 229,229.80 : x
  2. Step 2: Convert to fraction form
    356,583.40/492,020.58 = 229,229.80/x
  3. Step 3: Cross multiply
    356,583.40x = 492,020.58 × 229,229.80
  4. Step 4: Simplify right side
    356,583.40x = 112,785,779,149.28
  5. Step 5: Solve for x
    x = 112,785,779,149.28/356,583.40
  6. Step 6: Final answer
    x = 316,295.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.