Home / 259,182.27-388,506.80-99,220.53

Finding the Fourth Proportional to 259,182.27, 388,506.80 and 99,220.53

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Solution

The fourth proportional to 259,182.27, 388,506.80 and 99,220.53 is: 148,728.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,182.27 : 388,506.80 = 99,220.53 : x
  2. Step 2: Convert to fraction form
    259,182.27/388,506.80 = 99,220.53/x
  3. Step 3: Cross multiply
    259,182.27x = 388,506.80 × 99,220.53
  4. Step 4: Simplify right side
    259,182.27x = 38,547,850,108.50
  5. Step 5: Solve for x
    x = 38,547,850,108.50/259,182.27
  6. Step 6: Final answer
    x = 148,728.73

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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.