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Finding the Fourth Proportional to 153,603.91, 230,371.29 and 55,107.91

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Solution

The fourth proportional to 153,603.91, 230,371.29 and 55,107.91 is: 82,649.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,603.91 : 230,371.29 = 55,107.91 : x
  2. Step 2: Convert to fraction form
    153,603.91/230,371.29 = 55,107.91/x
  3. Step 3: Cross multiply
    153,603.91x = 230,371.29 × 55,107.91
  4. Step 4: Simplify right side
    153,603.91x = 12,695,280,315.90
  5. Step 5: Solve for x
    x = 12,695,280,315.90/153,603.91
  6. Step 6: Final answer
    x = 82,649.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.