Home / 545,128.75-817,816.16-180,389.42

Finding the Fourth Proportional to 545,128.75, 817,816.16 and 180,389.42

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Solution

The fourth proportional to 545,128.75, 817,816.16 and 180,389.42 is: 270,624.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,128.75 : 817,816.16 = 180,389.42 : x
  2. Step 2: Convert to fraction form
    545,128.75/817,816.16 = 180,389.42/x
  3. Step 3: Cross multiply
    545,128.75x = 817,816.16 × 180,389.42
  4. Step 4: Simplify right side
    545,128.75x = 147,525,384,751.51
  5. Step 5: Solve for x
    x = 147,525,384,751.51/545,128.75
  6. Step 6: Final answer
    x = 270,624.85

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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.