Home / 438,180.60-657,530.10-157,661.40

Finding the Fourth Proportional to 438,180.60, 657,530.10 and 157,661.40

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Solution

The fourth proportional to 438,180.60, 657,530.10 and 157,661.40 is: 236,585.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,180.60 : 657,530.10 = 157,661.40 : x
  2. Step 2: Convert to fraction form
    438,180.60/657,530.10 = 157,661.40/x
  3. Step 3: Cross multiply
    438,180.60x = 657,530.10 × 157,661.40
  4. Step 4: Simplify right side
    438,180.60x = 103,667,116,108.14
  5. Step 5: Solve for x
    x = 103,667,116,108.14/438,180.60
  6. Step 6: Final answer
    x = 236,585.36

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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.