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Finding the Fourth Proportional to 478,299.10, 660,053.43 and 260,508.62

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Solution

The fourth proportional to 478,299.10, 660,053.43 and 260,508.62 is: 359,502.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,299.10 : 660,053.43 = 260,508.62 : x
  2. Step 2: Convert to fraction form
    478,299.10/660,053.43 = 260,508.62/x
  3. Step 3: Cross multiply
    478,299.10x = 660,053.43 × 260,508.62
  4. Step 4: Simplify right side
    478,299.10x = 171,949,609,093.02
  5. Step 5: Solve for x
    x = 171,949,609,093.02/478,299.10
  6. Step 6: Final answer
    x = 359,502.27

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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.