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Finding the Fourth Proportional to 500,134.86, 690,186.96 and 270,692.28

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Solution

The fourth proportional to 500,134.86, 690,186.96 and 270,692.28 is: 373,555.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,134.86 : 690,186.96 = 270,692.28 : x
  2. Step 2: Convert to fraction form
    500,134.86/690,186.96 = 270,692.28/x
  3. Step 3: Cross multiply
    500,134.86x = 690,186.96 × 270,692.28
  4. Step 4: Simplify right side
    500,134.86x = 186,828,281,828.67
  5. Step 5: Solve for x
    x = 186,828,281,828.67/500,134.86
  6. Step 6: Final answer
    x = 373,555.81

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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.