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Finding the Fourth Proportional to 370,699.59, 556,114.98 and 139,883.61

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Solution

The fourth proportional to 370,699.59, 556,114.98 and 139,883.61 is: 209,850.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,699.59 : 556,114.98 = 139,883.61 : x
  2. Step 2: Convert to fraction form
    370,699.59/556,114.98 = 139,883.61/x
  3. Step 3: Cross multiply
    370,699.59x = 556,114.98 × 139,883.61
  4. Step 4: Simplify right side
    370,699.59x = 77,791,370,977.48
  5. Step 5: Solve for x
    x = 77,791,370,977.48/370,699.59
  6. Step 6: Final answer
    x = 209,850.17

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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.