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Finding the Fourth Proportional to 170,219.78, 255,274.78 and 56,346.34

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Solution

The fourth proportional to 170,219.78, 255,274.78 and 56,346.34 is: 84,501.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,219.78 : 255,274.78 = 56,346.34 : x
  2. Step 2: Convert to fraction form
    170,219.78/255,274.78 = 56,346.34/x
  3. Step 3: Cross multiply
    170,219.78x = 255,274.78 × 56,346.34
  4. Step 4: Simplify right side
    170,219.78x = 14,383,799,547.31
  5. Step 5: Solve for x
    x = 14,383,799,547.31/170,219.78
  6. Step 6: Final answer
    x = 84,501.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.