Home / 191,728.20-287,592.30-178,606.20

Finding the Fourth Proportional to 191,728.20, 287,592.30 and 178,606.20

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Solution

The fourth proportional to 191,728.20, 287,592.30 and 178,606.20 is: 267,909.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,728.20 : 287,592.30 = 178,606.20 : x
  2. Step 2: Convert to fraction form
    191,728.20/287,592.30 = 178,606.20/x
  3. Step 3: Cross multiply
    191,728.20x = 287,592.30 × 178,606.20
  4. Step 4: Simplify right side
    191,728.20x = 51,365,767,852.26
  5. Step 5: Solve for x
    x = 51,365,767,852.26/191,728.20
  6. Step 6: Final answer
    x = 267,909.30

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1.5x scale

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.