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Finding the Fourth Proportional to 342,237.84, 513,317.53 and 89,542.72

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Solution

The fourth proportional to 342,237.84, 513,317.53 and 89,542.72 is: 134,303.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,237.84 : 513,317.53 = 89,542.72 : x
  2. Step 2: Convert to fraction form
    342,237.84/513,317.53 = 89,542.72/x
  3. Step 3: Cross multiply
    342,237.84x = 513,317.53 × 89,542.72
  4. Step 4: Simplify right side
    342,237.84x = 45,963,847,859.88
  5. Step 5: Solve for x
    x = 45,963,847,859.88/342,237.84
  6. Step 6: Final answer
    x = 134,303.82

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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.