Home / 454,509.36-681,764.02-138,966.24

Finding the Fourth Proportional to 454,509.36, 681,764.02 and 138,966.24

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Solution

The fourth proportional to 454,509.36, 681,764.02 and 138,966.24 is: 208,449.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,509.36 : 681,764.02 = 138,966.24 : x
  2. Step 2: Convert to fraction form
    454,509.36/681,764.02 = 138,966.24/x
  3. Step 3: Cross multiply
    454,509.36x = 681,764.02 × 138,966.24
  4. Step 4: Simplify right side
    454,509.36x = 94,742,182,426.68
  5. Step 5: Solve for x
    x = 94,742,182,426.68/454,509.36
  6. Step 6: Final answer
    x = 208,449.35

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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.