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Finding the Fourth Proportional to 440,090.72, 607,326.48 and 238,886.72

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Solution

The fourth proportional to 440,090.72, 607,326.48 and 238,886.72 is: 329,664.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,090.72 : 607,326.48 = 238,886.72 : x
  2. Step 2: Convert to fraction form
    440,090.72/607,326.48 = 238,886.72/x
  3. Step 3: Cross multiply
    440,090.72x = 607,326.48 × 238,886.72
  4. Step 4: Simplify right side
    440,090.72x = 145,082,230,776.35
  5. Step 5: Solve for x
    x = 145,082,230,776.35/440,090.72
  6. Step 6: Final answer
    x = 329,664.37

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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.