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Finding the Fourth Proportional to 438,308.58, 657,500.27 and 153,974.28

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Solution

The fourth proportional to 438,308.58, 657,500.27 and 153,974.28 is: 230,974.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,308.58 : 657,500.27 = 153,974.28 : x
  2. Step 2: Convert to fraction form
    438,308.58/657,500.27 = 153,974.28/x
  3. Step 3: Cross multiply
    438,308.58x = 657,500.27 × 153,974.28
  4. Step 4: Simplify right side
    438,308.58x = 101,238,130,673.06
  5. Step 5: Solve for x
    x = 101,238,130,673.06/438,308.58
  6. Step 6: Final answer
    x = 230,974.56

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1.5x scale

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.