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Finding the Fourth Proportional to 434,501.70, 651,752.55 and 118,958.10

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Solution

The fourth proportional to 434,501.70, 651,752.55 and 118,958.10 is: 178,437.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,501.70 : 651,752.55 = 118,958.10 : x
  2. Step 2: Convert to fraction form
    434,501.70/651,752.55 = 118,958.10/x
  3. Step 3: Cross multiply
    434,501.70x = 651,752.55 × 118,958.10
  4. Step 4: Simplify right side
    434,501.70x = 77,531,245,018.16
  5. Step 5: Solve for x
    x = 77,531,245,018.16/434,501.70
  6. Step 6: Final answer
    x = 178,437.15

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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.