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Finding the Fourth Proportional to 308,224.73, 425,346.81 and 170,403.07

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Solution

The fourth proportional to 308,224.73, 425,346.81 and 170,403.07 is: 235,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,224.73 : 425,346.81 = 170,403.07 : x
  2. Step 2: Convert to fraction form
    308,224.73/425,346.81 = 170,403.07/x
  3. Step 3: Cross multiply
    308,224.73x = 425,346.81 × 170,403.07
  4. Step 4: Simplify right side
    308,224.73x = 72,480,402,238.71
  5. Step 5: Solve for x
    x = 72,480,402,238.71/308,224.73
  6. Step 6: Final answer
    x = 235,154.40

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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.