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Finding the Fourth Proportional to 243,807.48, 336,661.98 and 153,314.88

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Solution

The fourth proportional to 243,807.48, 336,661.98 and 153,314.88 is: 211,705.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,807.48 : 336,661.98 = 153,314.88 : x
  2. Step 2: Convert to fraction form
    243,807.48/336,661.98 = 153,314.88/x
  3. Step 3: Cross multiply
    243,807.48x = 336,661.98 × 153,314.88
  4. Step 4: Simplify right side
    243,807.48x = 51,615,291,064.26
  5. Step 5: Solve for x
    x = 51,615,291,064.26/243,807.48
  6. Step 6: Final answer
    x = 211,705.12

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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.