Home / 238,085.03-328,566.81-130,658.90

Finding the Fourth Proportional to 238,085.03, 328,566.81 and 130,658.90

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Solution

The fourth proportional to 238,085.03, 328,566.81 and 130,658.90 is: 180,314.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,085.03 : 328,566.81 = 130,658.90 : x
  2. Step 2: Convert to fraction form
    238,085.03/328,566.81 = 130,658.90/x
  3. Step 3: Cross multiply
    238,085.03x = 328,566.81 × 130,658.90
  4. Step 4: Simplify right side
    238,085.03x = 42,930,177,971.11
  5. Step 5: Solve for x
    x = 42,930,177,971.11/238,085.03
  6. Step 6: Final answer
    x = 180,314.48

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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.