Home / 328,041.90-492,062.65-253,271.21

Finding the Fourth Proportional to 328,041.90, 492,062.65 and 253,271.21

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Solution

The fourth proportional to 328,041.90, 492,062.65 and 253,271.21 is: 379,906.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,041.90 : 492,062.65 = 253,271.21 : x
  2. Step 2: Convert to fraction form
    328,041.90/492,062.65 = 253,271.21/x
  3. Step 3: Cross multiply
    328,041.90x = 492,062.65 × 253,271.21
  4. Step 4: Simplify right side
    328,041.90x = 124,625,299,667.82
  5. Step 5: Solve for x
    x = 124,625,299,667.82/328,041.90
  6. Step 6: Final answer
    x = 379,906.65

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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.