Home / 611,317.20-916,975.80-168,085.20

Finding the Fourth Proportional to 611,317.20, 916,975.80 and 168,085.20

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Solution

The fourth proportional to 611,317.20, 916,975.80 and 168,085.20 is: 252,127.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,317.20 : 916,975.80 = 168,085.20 : x
  2. Step 2: Convert to fraction form
    611,317.20/916,975.80 = 168,085.20/x
  3. Step 3: Cross multiply
    611,317.20x = 916,975.80 × 168,085.20
  4. Step 4: Simplify right side
    611,317.20x = 154,130,060,738.16
  5. Step 5: Solve for x
    x = 154,130,060,738.16/611,317.20
  6. Step 6: Final answer
    x = 252,127.80

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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.