Home / 238,356.32-328,931.74-130,928.18

Finding the Fourth Proportional to 238,356.32, 328,931.74 and 130,928.18

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Solution

The fourth proportional to 238,356.32, 328,931.74 and 130,928.18 is: 180,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,356.32 : 328,931.74 = 130,928.18 : x
  2. Step 2: Convert to fraction form
    238,356.32/328,931.74 = 130,928.18/x
  3. Step 3: Cross multiply
    238,356.32x = 328,931.74 × 130,928.18
  4. Step 4: Simplify right side
    238,356.32x = 43,066,434,062.43
  5. Step 5: Solve for x
    x = 43,066,434,062.43/238,356.32
  6. Step 6: Final answer
    x = 180,680.90

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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.