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Finding the Fourth Proportional to 340,559.91, 510,838.43 and 103,901.79

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Solution

The fourth proportional to 340,559.91, 510,838.43 and 103,901.79 is: 155,852.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,559.91 : 510,838.43 = 103,901.79 : x
  2. Step 2: Convert to fraction form
    340,559.91/510,838.43 = 103,901.79/x
  3. Step 3: Cross multiply
    340,559.91x = 510,838.43 × 103,901.79
  4. Step 4: Simplify right side
    340,559.91x = 53,077,026,758.28
  5. Step 5: Solve for x
    x = 53,077,026,758.28/340,559.91
  6. Step 6: Final answer
    x = 155,852.25

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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.