Home / 231,303.36-319,199.16-129,332.52

Finding the Fourth Proportional to 231,303.36, 319,199.16 and 129,332.52

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Solution

The fourth proportional to 231,303.36, 319,199.16 and 129,332.52 is: 178,479.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,303.36 : 319,199.16 = 129,332.52 : x
  2. Step 2: Convert to fraction form
    231,303.36/319,199.16 = 129,332.52/x
  3. Step 3: Cross multiply
    231,303.36x = 319,199.16 × 129,332.52
  4. Step 4: Simplify right side
    231,303.36x = 41,282,831,744.68
  5. Step 5: Solve for x
    x = 41,282,831,744.68/231,303.36
  6. Step 6: Final answer
    x = 178,479.17

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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.