Home / 230,520.88-318,124.46-128,545.36

Finding the Fourth Proportional to 230,520.88, 318,124.46 and 128,545.36

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Solution

The fourth proportional to 230,520.88, 318,124.46 and 128,545.36 is: 177,395.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,520.88 : 318,124.46 = 128,545.36 : x
  2. Step 2: Convert to fraction form
    230,520.88/318,124.46 = 128,545.36/x
  3. Step 3: Cross multiply
    230,520.88x = 318,124.46 × 128,545.36
  4. Step 4: Simplify right side
    230,520.88x = 40,893,423,235.51
  5. Step 5: Solve for x
    x = 40,893,423,235.51/230,520.88
  6. Step 6: Final answer
    x = 177,395.74

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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.