Home / 232,312.55-320,610.64-128,956.47

Finding the Fourth Proportional to 232,312.55, 320,610.64 and 128,956.47

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Solution

The fourth proportional to 232,312.55, 320,610.64 and 128,956.47 is: 177,970.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,312.55 : 320,610.64 = 128,956.47 : x
  2. Step 2: Convert to fraction form
    232,312.55/320,610.64 = 128,956.47/x
  3. Step 3: Cross multiply
    232,312.55x = 320,610.64 × 128,956.47
  4. Step 4: Simplify right side
    232,312.55x = 41,344,817,180.37
  5. Step 5: Solve for x
    x = 41,344,817,180.37/232,312.55
  6. Step 6: Final answer
    x = 177,970.66

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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.