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Finding the Fourth Proportional to 170,729.96, 256,225.62 and 77,301.32

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Solution

The fourth proportional to 170,729.96, 256,225.62 and 77,301.32 is: 116,011.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,729.96 : 256,225.62 = 77,301.32 : x
  2. Step 2: Convert to fraction form
    170,729.96/256,225.62 = 77,301.32/x
  3. Step 3: Cross multiply
    170,729.96x = 256,225.62 × 77,301.32
  4. Step 4: Simplify right side
    170,729.96x = 19,806,578,643.82
  5. Step 5: Solve for x
    x = 19,806,578,643.82/170,729.96
  6. Step 6: Final answer
    x = 116,011.15

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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.