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Finding the Fourth Proportional to 199,335, 275,148.93 and 118,787.79

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Solution

The fourth proportional to 199,335, 275,148.93 and 118,787.79 is: 163,966.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,335 : 275,148.93 = 118,787.79 : x
  2. Step 2: Convert to fraction form
    199,335/275,148.93 = 118,787.79/x
  3. Step 3: Cross multiply
    199,335x = 275,148.93 × 118,787.79
  4. Step 4: Simplify right side
    199,335x = 32,684,333,315.56
  5. Step 5: Solve for x
    x = 32,684,333,315.56/199,335
  6. Step 6: Final answer
    x = 163,966.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.