Home / 305,370.36-457,741.98-127,980.36

Finding the Fourth Proportional to 305,370.36, 457,741.98 and 127,980.36

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Solution

The fourth proportional to 305,370.36, 457,741.98 and 127,980.36 is: 191,839.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,370.36 : 457,741.98 = 127,980.36 : x
  2. Step 2: Convert to fraction form
    305,370.36/457,741.98 = 127,980.36/x
  3. Step 3: Cross multiply
    305,370.36x = 457,741.98 × 127,980.36
  4. Step 4: Simplify right side
    305,370.36x = 58,581,983,387.51
  5. Step 5: Solve for x
    x = 58,581,983,387.51/305,370.36
  6. Step 6: Final answer
    x = 191,839.13

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1.5x scale

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.