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Finding the Fourth Proportional to 490,678.37, 736,017.33 and 153,745.51

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Solution

The fourth proportional to 490,678.37, 736,017.33 and 153,745.51 is: 230,618.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,678.37 : 736,017.33 = 153,745.51 : x
  2. Step 2: Convert to fraction form
    490,678.37/736,017.33 = 153,745.51/x
  3. Step 3: Cross multiply
    490,678.37x = 736,017.33 × 153,745.51
  4. Step 4: Simplify right side
    490,678.37x = 113,159,359,886.22
  5. Step 5: Solve for x
    x = 113,159,359,886.22/490,678.37
  6. Step 6: Final answer
    x = 230,618.19

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Similar ratio
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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.