Home / 279,746.96-386,055.12-152,422.56

Finding the Fourth Proportional to 279,746.96, 386,055.12 and 152,422.56

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Solution

The fourth proportional to 279,746.96, 386,055.12 and 152,422.56 is: 210,345.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,746.96 : 386,055.12 = 152,422.56 : x
  2. Step 2: Convert to fraction form
    279,746.96/386,055.12 = 152,422.56/x
  3. Step 3: Cross multiply
    279,746.96x = 386,055.12 × 152,422.56
  4. Step 4: Simplify right side
    279,746.96x = 58,843,509,691.51
  5. Step 5: Solve for x
    x = 58,843,509,691.51/279,746.96
  6. Step 6: Final answer
    x = 210,345.48

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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.