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Finding the Fourth Proportional to 434,398.36, 651,510.04 and 118,887.16

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Solution

The fourth proportional to 434,398.36, 651,510.04 and 118,887.16 is: 178,306.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,398.36 : 651,510.04 = 118,887.16 : x
  2. Step 2: Convert to fraction form
    434,398.36/651,510.04 = 118,887.16/x
  3. Step 3: Cross multiply
    434,398.36x = 651,510.04 × 118,887.16
  4. Step 4: Simplify right side
    434,398.36x = 77,456,178,367.09
  5. Step 5: Solve for x
    x = 77,456,178,367.09/434,398.36
  6. Step 6: Final answer
    x = 178,306.79

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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.