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Finding the Fourth Proportional to 434,152.86, 651,290.45 and 134,657.79

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Solution

The fourth proportional to 434,152.86, 651,290.45 and 134,657.79 is: 202,005.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,152.86 : 651,290.45 = 134,657.79 : x
  2. Step 2: Convert to fraction form
    434,152.86/651,290.45 = 134,657.79/x
  3. Step 3: Cross multiply
    434,152.86x = 651,290.45 × 134,657.79
  4. Step 4: Simplify right side
    434,152.86x = 87,701,332,645.11
  5. Step 5: Solve for x
    x = 87,701,332,645.11/434,152.86
  6. Step 6: Final answer
    x = 202,005.65

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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.