Home / 280,240.65-386,784.83-175,513.12

Finding the Fourth Proportional to 280,240.65, 386,784.83 and 175,513.12

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Solution

The fourth proportional to 280,240.65, 386,784.83 and 175,513.12 is: 242,241.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,240.65 : 386,784.83 = 175,513.12 : x
  2. Step 2: Convert to fraction form
    280,240.65/386,784.83 = 175,513.12/x
  3. Step 3: Cross multiply
    280,240.65x = 386,784.83 × 175,513.12
  4. Step 4: Simplify right side
    280,240.65x = 67,885,812,281.97
  5. Step 5: Solve for x
    x = 67,885,812,281.97/280,240.65
  6. Step 6: Final answer
    x = 242,241.13

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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.