Home / 238,122.74-328,618.78-130,696.40

Finding the Fourth Proportional to 238,122.74, 328,618.78 and 130,696.40

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Solution

The fourth proportional to 238,122.74, 328,618.78 and 130,696.40 is: 180,366.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,122.74 : 328,618.78 = 130,696.40 : x
  2. Step 2: Convert to fraction form
    238,122.74/328,618.78 = 130,696.40/x
  3. Step 3: Cross multiply
    238,122.74x = 328,618.78 × 130,696.40
  4. Step 4: Simplify right side
    238,122.74x = 42,949,291,518.39
  5. Step 5: Solve for x
    x = 42,949,291,518.39/238,122.74
  6. Step 6: Final answer
    x = 180,366.19

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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.