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Finding the Fourth Proportional to 170,730.96, 256,227.12 and 77,302.32

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Solution

The fourth proportional to 170,730.96, 256,227.12 and 77,302.32 is: 116,012.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,730.96 : 256,227.12 = 77,302.32 : x
  2. Step 2: Convert to fraction form
    170,730.96/256,227.12 = 77,302.32/x
  3. Step 3: Cross multiply
    170,730.96x = 256,227.12 × 77,302.32
  4. Step 4: Simplify right side
    170,730.96x = 19,806,950,822.92
  5. Step 5: Solve for x
    x = 19,806,950,822.92/170,730.96
  6. Step 6: Final answer
    x = 116,012.65

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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.