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Finding the Fourth Proportional to 499,544.08, 749,363.30 and 139,714.81

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Solution

The fourth proportional to 499,544.08, 749,363.30 and 139,714.81 is: 209,585.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,544.08 : 749,363.30 = 139,714.81 : x
  2. Step 2: Convert to fraction form
    499,544.08/749,363.30 = 139,714.81/x
  3. Step 3: Cross multiply
    499,544.08x = 749,363.30 × 139,714.81
  4. Step 4: Simplify right side
    499,544.08x = 104,697,151,080.47
  5. Step 5: Solve for x
    x = 104,697,151,080.47/499,544.08
  6. Step 6: Final answer
    x = 209,585.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.