Home / 243,756.56-336,323.40-153,127.28

Finding the Fourth Proportional to 243,756.56, 336,323.40 and 153,127.28

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Solution

The fourth proportional to 243,756.56, 336,323.40 and 153,127.28 is: 211,277.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,756.56 : 336,323.40 = 153,127.28 : x
  2. Step 2: Convert to fraction form
    243,756.56/336,323.40 = 153,127.28/x
  3. Step 3: Cross multiply
    243,756.56x = 336,323.40 × 153,127.28
  4. Step 4: Simplify right side
    243,756.56x = 51,500,287,442.35
  5. Step 5: Solve for x
    x = 51,500,287,442.35/243,756.56
  6. Step 6: Final answer
    x = 211,277.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.