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Finding the Fourth Proportional to 356,465.94, 534,672 and 103,748.40

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Solution

The fourth proportional to 356,465.94, 534,672 and 103,748.40 is: 155,614.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,465.94 : 534,672 = 103,748.40 : x
  2. Step 2: Convert to fraction form
    356,465.94/534,672 = 103,748.40/x
  3. Step 3: Cross multiply
    356,465.94x = 534,672 × 103,748.40
  4. Step 4: Simplify right side
    356,465.94x = 55,471,364,524.80
  5. Step 5: Solve for x
    x = 55,471,364,524.80/356,465.94
  6. Step 6: Final answer
    x = 155,614.77

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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.