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Finding the Fourth Proportional to 545,184.70, 817,776.88 and 145,815.14

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Solution

The fourth proportional to 545,184.70, 817,776.88 and 145,815.14 is: 218,722.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,184.70 : 817,776.88 = 145,815.14 : x
  2. Step 2: Convert to fraction form
    545,184.70/817,776.88 = 145,815.14/x
  3. Step 3: Cross multiply
    545,184.70x = 817,776.88 × 145,815.14
  4. Step 4: Simplify right side
    545,184.70x = 119,244,251,925.87
  5. Step 5: Solve for x
    x = 119,244,251,925.87/545,184.70
  6. Step 6: Final answer
    x = 218,722.67

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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.