Home / 238,145.29-328,639.34-130,717.15

Finding the Fourth Proportional to 238,145.29, 328,639.34 and 130,717.15

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Solution

The fourth proportional to 238,145.29, 328,639.34 and 130,717.15 is: 180,389.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,145.29 : 328,639.34 = 130,717.15 : x
  2. Step 2: Convert to fraction form
    238,145.29/328,639.34 = 130,717.15/x
  3. Step 3: Cross multiply
    238,145.29x = 328,639.34 × 130,717.15
  4. Step 4: Simplify right side
    238,145.29x = 42,958,797,407.88
  5. Step 5: Solve for x
    x = 42,958,797,407.88/238,145.29
  6. Step 6: Final answer
    x = 180,389.03

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1.5x scale

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.