Home / 243,837.86-336,488.36-136,405.60

Finding the Fourth Proportional to 243,837.86, 336,488.36 and 136,405.60

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Solution

The fourth proportional to 243,837.86, 336,488.36 and 136,405.60 is: 188,235.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,837.86 : 336,488.36 = 136,405.60 : x
  2. Step 2: Convert to fraction form
    243,837.86/336,488.36 = 136,405.60/x
  3. Step 3: Cross multiply
    243,837.86x = 336,488.36 × 136,405.60
  4. Step 4: Simplify right side
    243,837.86x = 45,898,896,638.82
  5. Step 5: Solve for x
    x = 45,898,896,638.82/243,837.86
  6. Step 6: Final answer
    x = 188,235.32

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1.5x scale

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.