Home / 237,880.16-328,279.13-130,443.78

Finding the Fourth Proportional to 237,880.16, 328,279.13 and 130,443.78

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Solution

The fourth proportional to 237,880.16, 328,279.13 and 130,443.78 is: 180,014.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,880.16 : 328,279.13 = 130,443.78 : x
  2. Step 2: Convert to fraction form
    237,880.16/328,279.13 = 130,443.78/x
  3. Step 3: Cross multiply
    237,880.16x = 328,279.13 × 130,443.78
  4. Step 4: Simplify right side
    237,880.16x = 42,821,969,960.09
  5. Step 5: Solve for x
    x = 42,821,969,960.09/237,880.16
  6. Step 6: Final answer
    x = 180,014.89

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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.