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Finding the Fourth Proportional to 310,015.76, 427,798.08 and 174,023.44

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Solution

The fourth proportional to 310,015.76, 427,798.08 and 174,023.44 is: 240,139.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,015.76 : 427,798.08 = 174,023.44 : x
  2. Step 2: Convert to fraction form
    310,015.76/427,798.08 = 174,023.44/x
  3. Step 3: Cross multiply
    310,015.76x = 427,798.08 × 174,023.44
  4. Step 4: Simplify right side
    310,015.76x = 74,446,892,437.50
  5. Step 5: Solve for x
    x = 74,446,892,437.50/310,015.76
  6. Step 6: Final answer
    x = 240,139.06

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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.