Home / 280,020.54-386,426.79-152,693.40

Finding the Fourth Proportional to 280,020.54, 386,426.79 and 152,693.40

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Solution

The fourth proportional to 280,020.54, 386,426.79 and 152,693.40 is: 210,716.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,020.54 : 386,426.79 = 152,693.40 : x
  2. Step 2: Convert to fraction form
    280,020.54/386,426.79 = 152,693.40/x
  3. Step 3: Cross multiply
    280,020.54x = 386,426.79 × 152,693.40
  4. Step 4: Simplify right side
    280,020.54x = 59,004,820,416.19
  5. Step 5: Solve for x
    x = 59,004,820,416.19/280,020.54
  6. Step 6: Final answer
    x = 210,716.04

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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.