Home / 287,962.30-397,366.07-158,905.92

Finding the Fourth Proportional to 287,962.30, 397,366.07 and 158,905.92

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Solution

The fourth proportional to 287,962.30, 397,366.07 and 158,905.92 is: 219,278.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,962.30 : 397,366.07 = 158,905.92 : x
  2. Step 2: Convert to fraction form
    287,962.30/397,366.07 = 158,905.92/x
  3. Step 3: Cross multiply
    287,962.30x = 397,366.07 × 158,905.92
  4. Step 4: Simplify right side
    287,962.30x = 63,143,820,930.13
  5. Step 5: Solve for x
    x = 63,143,820,930.13/287,962.30
  6. Step 6: Final answer
    x = 219,278.08

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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.