Home / 280,474.83-387,056.67-153,150.42

Finding the Fourth Proportional to 280,474.83, 387,056.67 and 153,150.42

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Solution

The fourth proportional to 280,474.83, 387,056.67 and 153,150.42 is: 211,348.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,474.83 : 387,056.67 = 153,150.42 : x
  2. Step 2: Convert to fraction form
    280,474.83/387,056.67 = 153,150.42/x
  3. Step 3: Cross multiply
    280,474.83x = 387,056.67 × 153,150.42
  4. Step 4: Simplify right side
    280,474.83x = 59,277,891,574.30
  5. Step 5: Solve for x
    x = 59,277,891,574.30/280,474.83
  6. Step 6: Final answer
    x = 211,348.35

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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.