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Finding the Fourth Proportional to 280,233.34, 386,730.51 and 159,392.01

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Solution

The fourth proportional to 280,233.34, 386,730.51 and 159,392.01 is: 219,965.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,233.34 : 386,730.51 = 159,392.01 : x
  2. Step 2: Convert to fraction form
    280,233.34/386,730.51 = 159,392.01/x
  3. Step 3: Cross multiply
    280,233.34x = 386,730.51 × 159,392.01
  4. Step 4: Simplify right side
    280,233.34x = 61,641,753,317.23
  5. Step 5: Solve for x
    x = 61,641,753,317.23/280,233.34
  6. Step 6: Final answer
    x = 219,965.81

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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.