Home / 456,218.90-684,263.55-156,713.30

Finding the Fourth Proportional to 456,218.90, 684,263.55 and 156,713.30

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Solution

The fourth proportional to 456,218.90, 684,263.55 and 156,713.30 is: 235,047.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,218.90 : 684,263.55 = 156,713.30 : x
  2. Step 2: Convert to fraction form
    456,218.90/684,263.55 = 156,713.30/x
  3. Step 3: Cross multiply
    456,218.90x = 684,263.55 × 156,713.30
  4. Step 4: Simplify right side
    456,218.90x = 107,233,198,990.22
  5. Step 5: Solve for x
    x = 107,233,198,990.22/456,218.90
  6. Step 6: Final answer
    x = 235,047.69

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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.