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Finding the Fourth Proportional to 266,454.72, 367,695.90 and 145,590.30

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Solution

The fourth proportional to 266,454.72, 367,695.90 and 145,590.30 is: 200,908.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,454.72 : 367,695.90 = 145,590.30 : x
  2. Step 2: Convert to fraction form
    266,454.72/367,695.90 = 145,590.30/x
  3. Step 3: Cross multiply
    266,454.72x = 367,695.90 × 145,590.30
  4. Step 4: Simplify right side
    266,454.72x = 53,532,956,389.77
  5. Step 5: Solve for x
    x = 53,532,956,389.77/266,454.72
  6. Step 6: Final answer
    x = 200,908.27

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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.