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Finding the Fourth Proportional to 266,293.96, 367,488.56 and 145,438.76

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Solution

The fourth proportional to 266,293.96, 367,488.56 and 145,438.76 is: 200,707.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,293.96 : 367,488.56 = 145,438.76 : x
  2. Step 2: Convert to fraction form
    266,293.96/367,488.56 = 145,438.76/x
  3. Step 3: Cross multiply
    266,293.96x = 367,488.56 × 145,438.76
  4. Step 4: Simplify right side
    266,293.96x = 53,447,081,762.90
  5. Step 5: Solve for x
    x = 53,447,081,762.90/266,293.96
  6. Step 6: Final answer
    x = 200,707.08

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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.