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Finding the Fourth Proportional to 266,207.64, 399,312.48 and 66,528.24

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Solution

The fourth proportional to 266,207.64, 399,312.48 and 66,528.24 is: 99,792.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,207.64 : 399,312.48 = 66,528.24 : x
  2. Step 2: Convert to fraction form
    266,207.64/399,312.48 = 66,528.24/x
  3. Step 3: Cross multiply
    266,207.64x = 399,312.48 × 66,528.24
  4. Step 4: Simplify right side
    266,207.64x = 26,565,555,256.49
  5. Step 5: Solve for x
    x = 26,565,555,256.49/266,207.64
  6. Step 6: Final answer
    x = 99,792.61

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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.