Home / 253,231.55-349,567.13-157,785.40

Finding the Fourth Proportional to 253,231.55, 349,567.13 and 157,785.40

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Solution

The fourth proportional to 253,231.55, 349,567.13 and 157,785.40 is: 217,810.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,231.55 : 349,567.13 = 157,785.40 : x
  2. Step 2: Convert to fraction form
    253,231.55/349,567.13 = 157,785.40/x
  3. Step 3: Cross multiply
    253,231.55x = 349,567.13 × 157,785.40
  4. Step 4: Simplify right side
    253,231.55x = 55,156,589,433.90
  5. Step 5: Solve for x
    x = 55,156,589,433.90/253,231.55
  6. Step 6: Final answer
    x = 217,810.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.