Home / 326,848.32-490,146.12-127,141.74

Finding the Fourth Proportional to 326,848.32, 490,146.12 and 127,141.74

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Solution

The fourth proportional to 326,848.32, 490,146.12 and 127,141.74 is: 190,663.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,848.32 : 490,146.12 = 127,141.74 : x
  2. Step 2: Convert to fraction form
    326,848.32/490,146.12 = 127,141.74/x
  3. Step 3: Cross multiply
    326,848.32x = 490,146.12 × 127,141.74
  4. Step 4: Simplify right side
    326,848.32x = 62,318,030,551.05
  5. Step 5: Solve for x
    x = 62,318,030,551.05/326,848.32
  6. Step 6: Final answer
    x = 190,663.46

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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.