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Finding the Fourth Proportional to 310,501.58, 428,537.55 and 174,546.72

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Solution

The fourth proportional to 310,501.58, 428,537.55 and 174,546.72 is: 240,899.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,501.58 : 428,537.55 = 174,546.72 : x
  2. Step 2: Convert to fraction form
    310,501.58/428,537.55 = 174,546.72/x
  3. Step 3: Cross multiply
    310,501.58x = 428,537.55 × 174,546.72
  4. Step 4: Simplify right side
    310,501.58x = 74,799,823,749.34
  5. Step 5: Solve for x
    x = 74,799,823,749.34/310,501.58
  6. Step 6: Final answer
    x = 240,899.98

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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.