Home / 238,228.71-328,756.18-130,805.66

Finding the Fourth Proportional to 238,228.71, 328,756.18 and 130,805.66

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Solution

The fourth proportional to 238,228.71, 328,756.18 and 130,805.66 is: 180,512.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,228.71 : 328,756.18 = 130,805.66 : x
  2. Step 2: Convert to fraction form
    238,228.71/328,756.18 = 130,805.66/x
  3. Step 3: Cross multiply
    238,228.71x = 328,756.18 × 130,805.66
  4. Step 4: Simplify right side
    238,228.71x = 43,003,167,994.86
  5. Step 5: Solve for x
    x = 43,003,167,994.86/238,228.71
  6. Step 6: Final answer
    x = 180,512.12

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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.