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Finding the Fourth Proportional to 266,728.80, 374,042.40 and 266,728.80

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Solution

The fourth proportional to 266,728.80, 374,042.40 and 266,728.80 is: 374,042.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,728.80 : 374,042.40 = 266,728.80 : x
  2. Step 2: Convert to fraction form
    266,728.80/374,042.40 = 266,728.80/x
  3. Step 3: Cross multiply
    266,728.80x = 374,042.40 × 266,728.80
  4. Step 4: Simplify right side
    266,728.80x = 99,767,880,501.12
  5. Step 5: Solve for x
    x = 99,767,880,501.12/266,728.80
  6. Step 6: Final answer
    x = 374,042.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.