Home / 280,562.34-387,176.04-153,238.24

Finding the Fourth Proportional to 280,562.34, 387,176.04 and 153,238.24

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Solution

The fourth proportional to 280,562.34, 387,176.04 and 153,238.24 is: 211,468.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,562.34 : 387,176.04 = 153,238.24 : x
  2. Step 2: Convert to fraction form
    280,562.34/387,176.04 = 153,238.24/x
  3. Step 3: Cross multiply
    280,562.34x = 387,176.04 × 153,238.24
  4. Step 4: Simplify right side
    280,562.34x = 59,330,175,423.74
  5. Step 5: Solve for x
    x = 59,330,175,423.74/280,562.34
  6. Step 6: Final answer
    x = 211,468.78

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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.