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Finding the Fourth Proportional to 445,535.64, 614,639.95 and 264,255.21

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Solution

The fourth proportional to 445,535.64, 614,639.95 and 264,255.21 is: 364,554.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,535.64 : 614,639.95 = 264,255.21 : x
  2. Step 2: Convert to fraction form
    445,535.64/614,639.95 = 264,255.21/x
  3. Step 3: Cross multiply
    445,535.64x = 614,639.95 × 264,255.21
  4. Step 4: Simplify right side
    445,535.64x = 162,421,808,401.00
  5. Step 5: Solve for x
    x = 162,421,808,401.00/445,535.64
  6. Step 6: Final answer
    x = 364,554.02

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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.