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Finding the Fourth Proportional to 235,460.32, 324,941.42 and 128,036.70

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Solution

The fourth proportional to 235,460.32, 324,941.42 and 128,036.70 is: 176,694.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,460.32 : 324,941.42 = 128,036.70 : x
  2. Step 2: Convert to fraction form
    235,460.32/324,941.42 = 128,036.70/x
  3. Step 3: Cross multiply
    235,460.32x = 324,941.42 × 128,036.70
  4. Step 4: Simplify right side
    235,460.32x = 41,604,427,430.21
  5. Step 5: Solve for x
    x = 41,604,427,430.21/235,460.32
  6. Step 6: Final answer
    x = 176,694.01

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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.