Home / 229,947.51-317,327.31-129,345.51

Finding the Fourth Proportional to 229,947.51, 317,327.31 and 129,345.51

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Solution

The fourth proportional to 229,947.51, 317,327.31 and 129,345.51 is: 178,496.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,947.51 : 317,327.31 = 129,345.51 : x
  2. Step 2: Convert to fraction form
    229,947.51/317,327.31 = 129,345.51/x
  3. Step 3: Cross multiply
    229,947.51x = 317,327.31 × 129,345.51
  4. Step 4: Simplify right side
    229,947.51x = 41,044,862,748.88
  5. Step 5: Solve for x
    x = 41,044,862,748.88/229,947.51
  6. Step 6: Final answer
    x = 178,496.66

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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.