Home / 281,550.48-388,539.76-154,228.16

Finding the Fourth Proportional to 281,550.48, 388,539.76 and 154,228.16

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Solution

The fourth proportional to 281,550.48, 388,539.76 and 154,228.16 is: 212,834.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,550.48 : 388,539.76 = 154,228.16 : x
  2. Step 2: Convert to fraction form
    281,550.48/388,539.76 = 154,228.16/x
  3. Step 3: Cross multiply
    281,550.48x = 388,539.76 × 154,228.16
  4. Step 4: Simplify right side
    281,550.48x = 59,923,772,271.64
  5. Step 5: Solve for x
    x = 59,923,772,271.64/281,550.48
  6. Step 6: Final answer
    x = 212,834.91

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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.