Home / 253,002.40-349,138.32-139,829.92

Finding the Fourth Proportional to 253,002.40, 349,138.32 and 139,829.92

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Solution

The fourth proportional to 253,002.40, 349,138.32 and 139,829.92 is: 192,962.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,002.40 : 349,138.32 = 139,829.92 : x
  2. Step 2: Convert to fraction form
    253,002.40/349,138.32 = 139,829.92/x
  3. Step 3: Cross multiply
    253,002.40x = 349,138.32 × 139,829.92
  4. Step 4: Simplify right side
    253,002.40x = 48,819,983,354.53
  5. Step 5: Solve for x
    x = 48,819,983,354.53/253,002.40
  6. Step 6: Final answer
    x = 192,962.53

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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.