Home / 238,142.40-328,639.92-130,710.48

Finding the Fourth Proportional to 238,142.40, 328,639.92 and 130,710.48

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Solution

The fourth proportional to 238,142.40, 328,639.92 and 130,710.48 is: 180,382.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,142.40 : 328,639.92 = 130,710.48 : x
  2. Step 2: Convert to fraction form
    238,142.40/328,639.92 = 130,710.48/x
  3. Step 3: Cross multiply
    238,142.40x = 328,639.92 × 130,710.48
  4. Step 4: Simplify right side
    238,142.40x = 42,956,681,690.36
  5. Step 5: Solve for x
    x = 42,956,681,690.36/238,142.40
  6. Step 6: Final answer
    x = 180,382.33

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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.