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Finding the Fourth Proportional to 370,495.52, 555,743.69 and 90,012.77

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Solution

The fourth proportional to 370,495.52, 555,743.69 and 90,012.77 is: 135,019.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,495.52 : 555,743.69 = 90,012.77 : x
  2. Step 2: Convert to fraction form
    370,495.52/555,743.69 = 90,012.77/x
  3. Step 3: Cross multiply
    370,495.52x = 555,743.69 × 90,012.77
  4. Step 4: Simplify right side
    370,495.52x = 50,024,025,718.14
  5. Step 5: Solve for x
    x = 50,024,025,718.14/370,495.52
  6. Step 6: Final answer
    x = 135,019.25

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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.