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Finding the Fourth Proportional to 340,521.98, 510,812.33 and 87,800.22

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Solution

The fourth proportional to 340,521.98, 510,812.33 and 87,800.22 is: 131,707.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,521.98 : 510,812.33 = 87,800.22 : x
  2. Step 2: Convert to fraction form
    340,521.98/510,812.33 = 87,800.22/x
  3. Step 3: Cross multiply
    340,521.98x = 510,812.33 × 87,800.22
  4. Step 4: Simplify right side
    340,521.98x = 44,849,434,513.71
  5. Step 5: Solve for x
    x = 44,849,434,513.71/340,521.98
  6. Step 6: Final answer
    x = 131,707.90

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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.