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Finding the Fourth Proportional to 280,159.01, 386,617.63 and 159,300.29

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Solution

The fourth proportional to 280,159.01, 386,617.63 and 159,300.29 is: 219,833.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,159.01 : 386,617.63 = 159,300.29 : x
  2. Step 2: Convert to fraction form
    280,159.01/386,617.63 = 159,300.29/x
  3. Step 3: Cross multiply
    280,159.01x = 386,617.63 × 159,300.29
  4. Step 4: Simplify right side
    280,159.01x = 61,588,299,270.37
  5. Step 5: Solve for x
    x = 61,588,299,270.37/280,159.01
  6. Step 6: Final answer
    x = 219,833.37

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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.