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Finding the Fourth Proportional to 280,362.83, 386,887.19 and 159,492.74

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Solution

The fourth proportional to 280,362.83, 386,887.19 and 159,492.74 is: 220,092.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,362.83 : 386,887.19 = 159,492.74 : x
  2. Step 2: Convert to fraction form
    280,362.83/386,887.19 = 159,492.74/x
  3. Step 3: Cross multiply
    280,362.83x = 386,887.19 × 159,492.74
  4. Step 4: Simplify right side
    280,362.83x = 61,705,695,272.10
  5. Step 5: Solve for x
    x = 61,705,695,272.10/280,362.83
  6. Step 6: Final answer
    x = 220,092.29

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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.