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Finding the Fourth Proportional to 340,655.58, 510,501.54 and 188,919.81

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Solution

The fourth proportional to 340,655.58, 510,501.54 and 188,919.81 is: 283,112.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,655.58 : 510,501.54 = 188,919.81 : x
  2. Step 2: Convert to fraction form
    340,655.58/510,501.54 = 188,919.81/x
  3. Step 3: Cross multiply
    340,655.58x = 510,501.54 × 188,919.81
  4. Step 4: Simplify right side
    340,655.58x = 96,443,853,941.51
  5. Step 5: Solve for x
    x = 96,443,853,941.51/340,655.58
  6. Step 6: Final answer
    x = 283,112.50

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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.