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Finding the Fourth Proportional to 266,288.80, 399,549.36 and 141,483.68

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Solution

The fourth proportional to 266,288.80, 399,549.36 and 141,483.68 is: 212,287.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,288.80 : 399,549.36 = 141,483.68 : x
  2. Step 2: Convert to fraction form
    266,288.80/399,549.36 = 141,483.68/x
  3. Step 3: Cross multiply
    266,288.80x = 399,549.36 × 141,483.68
  4. Step 4: Simplify right side
    266,288.80x = 56,529,713,794.44
  5. Step 5: Solve for x
    x = 56,529,713,794.44/266,288.80
  6. Step 6: Final answer
    x = 212,287.24

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1.5x scale

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.