Home / 328,742.34-492,366.16-257,219.25

Finding the Fourth Proportional to 328,742.34, 492,366.16 and 257,219.25

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Solution

The fourth proportional to 328,742.34, 492,366.16 and 257,219.25 is: 385,244.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,742.34 : 492,366.16 = 257,219.25 : x
  2. Step 2: Convert to fraction form
    328,742.34/492,366.16 = 257,219.25/x
  3. Step 3: Cross multiply
    328,742.34x = 492,366.16 × 257,219.25
  4. Step 4: Simplify right side
    328,742.34x = 126,646,054,400.58
  5. Step 5: Solve for x
    x = 126,646,054,400.58/328,742.34
  6. Step 6: Final answer
    x = 385,244.12

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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.