Home / 434,400.36-651,513.06-118,889.16

Finding the Fourth Proportional to 434,400.36, 651,513.06 and 118,889.16

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Solution

The fourth proportional to 434,400.36, 651,513.06 and 118,889.16 is: 178,309.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,400.36 : 651,513.06 = 118,889.16 : x
  2. Step 2: Convert to fraction form
    434,400.36/651,513.06 = 118,889.16/x
  3. Step 3: Cross multiply
    434,400.36x = 651,513.06 × 118,889.16
  4. Step 4: Simplify right side
    434,400.36x = 77,457,840,432.43
  5. Step 5: Solve for x
    x = 77,457,840,432.43/434,400.36
  6. Step 6: Final answer
    x = 178,309.80

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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.