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Finding the Fourth Proportional to 508,258.49, 701,402.12 and 278,816.22

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Solution

The fourth proportional to 508,258.49, 701,402.12 and 278,816.22 is: 384,769.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,258.49 : 701,402.12 = 278,816.22 : x
  2. Step 2: Convert to fraction form
    508,258.49/701,402.12 = 278,816.22/x
  3. Step 3: Cross multiply
    508,258.49x = 701,402.12 × 278,816.22
  4. Step 4: Simplify right side
    508,258.49x = 195,562,286,354.76
  5. Step 5: Solve for x
    x = 195,562,286,354.76/508,258.49
  6. Step 6: Final answer
    x = 384,769.35

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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.