Home / 611,931.10-917,896.65-162,721.30

Finding the Fourth Proportional to 611,931.10, 917,896.65 and 162,721.30

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Solution

The fourth proportional to 611,931.10, 917,896.65 and 162,721.30 is: 244,081.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,931.10 : 917,896.65 = 162,721.30 : x
  2. Step 2: Convert to fraction form
    611,931.10/917,896.65 = 162,721.30/x
  3. Step 3: Cross multiply
    611,931.10x = 917,896.65 × 162,721.30
  4. Step 4: Simplify right side
    611,931.10x = 149,361,336,153.65
  5. Step 5: Solve for x
    x = 149,361,336,153.65/611,931.10
  6. Step 6: Final answer
    x = 244,081.95

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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.