Home / 191,511.30-288,701.07-178,666.32

Finding the Fourth Proportional to 191,511.30, 288,701.07 and 178,666.32

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Solution

The fourth proportional to 191,511.30, 288,701.07 and 178,666.32 is: 269,337.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,511.30 : 288,701.07 = 178,666.32 : x
  2. Step 2: Convert to fraction form
    191,511.30/288,701.07 = 178,666.32/x
  3. Step 3: Cross multiply
    191,511.30x = 288,701.07 × 178,666.32
  4. Step 4: Simplify right side
    191,511.30x = 51,581,157,756.96
  5. Step 5: Solve for x
    x = 51,581,157,756.96/191,511.30
  6. Step 6: Final answer
    x = 269,337.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.