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Finding the Fourth Proportional to 191,950.80, 288,055.80 and 107,710.80

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Solution

The fourth proportional to 191,950.80, 288,055.80 and 107,710.80 is: 161,638.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,950.80 : 288,055.80 = 107,710.80 : x
  2. Step 2: Convert to fraction form
    191,950.80/288,055.80 = 107,710.80/x
  3. Step 3: Cross multiply
    191,950.80x = 288,055.80 × 107,710.80
  4. Step 4: Simplify right side
    191,950.80x = 31,026,720,662.64
  5. Step 5: Solve for x
    x = 31,026,720,662.64/191,950.80
  6. Step 6: Final answer
    x = 161,638.92

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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.