Home / 238,128.24-328,614.90-130,702.80

Finding the Fourth Proportional to 238,128.24, 328,614.90 and 130,702.80

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Solution

The fourth proportional to 238,128.24, 328,614.90 and 130,702.80 is: 180,368.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,128.24 : 328,614.90 = 130,702.80 : x
  2. Step 2: Convert to fraction form
    238,128.24/328,614.90 = 130,702.80/x
  3. Step 3: Cross multiply
    238,128.24x = 328,614.90 × 130,702.80
  4. Step 4: Simplify right side
    238,128.24x = 42,950,887,551.72
  5. Step 5: Solve for x
    x = 42,950,887,551.72/238,128.24
  6. Step 6: Final answer
    x = 180,368.73

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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.