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Finding the Fourth Proportional to 371,572.40, 557,358.60 and 91,089.65

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Solution

The fourth proportional to 371,572.40, 557,358.60 and 91,089.65 is: 136,634.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,572.40 : 557,358.60 = 91,089.65 : x
  2. Step 2: Convert to fraction form
    371,572.40/557,358.60 = 91,089.65/x
  3. Step 3: Cross multiply
    371,572.40x = 557,358.60 × 91,089.65
  4. Step 4: Simplify right side
    371,572.40x = 50,769,599,798.49
  5. Step 5: Solve for x
    x = 50,769,599,798.49/371,572.40
  6. Step 6: Final answer
    x = 136,634.48

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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.