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Finding the Fourth Proportional to 235,529.70, 325,032.48 and 128,100.50

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Solution

The fourth proportional to 235,529.70, 325,032.48 and 128,100.50 is: 176,779.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,529.70 : 325,032.48 = 128,100.50 : x
  2. Step 2: Convert to fraction form
    235,529.70/325,032.48 = 128,100.50/x
  3. Step 3: Cross multiply
    235,529.70x = 325,032.48 × 128,100.50
  4. Step 4: Simplify right side
    235,529.70x = 41,636,823,204.24
  5. Step 5: Solve for x
    x = 41,636,823,204.24/235,529.70
  6. Step 6: Final answer
    x = 176,779.50

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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.