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Finding the Fourth Proportional to 340,370.80, 510,501.52 and 103,658.43

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Solution

The fourth proportional to 340,370.80, 510,501.52 and 103,658.43 is: 155,470.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,370.80 : 510,501.52 = 103,658.43 : x
  2. Step 2: Convert to fraction form
    340,370.80/510,501.52 = 103,658.43/x
  3. Step 3: Cross multiply
    340,370.80x = 510,501.52 × 103,658.43
  4. Step 4: Simplify right side
    340,370.80x = 52,917,786,075.81
  5. Step 5: Solve for x
    x = 52,917,786,075.81/340,370.80
  6. Step 6: Final answer
    x = 155,470.99

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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.