Home / 490,740.95-736,110.32-153,807.28

Finding the Fourth Proportional to 490,740.95, 736,110.32 and 153,807.28

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Solution

The fourth proportional to 490,740.95, 736,110.32 and 153,807.28 is: 230,710.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,740.95 : 736,110.32 = 153,807.28 : x
  2. Step 2: Convert to fraction form
    490,740.95/736,110.32 = 153,807.28/x
  3. Step 3: Cross multiply
    490,740.95x = 736,110.32 × 153,807.28
  4. Step 4: Simplify right side
    490,740.95x = 113,219,123,489.82
  5. Step 5: Solve for x
    x = 113,219,123,489.82/490,740.95
  6. Step 6: Final answer
    x = 230,710.57

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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.