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Finding the Fourth Proportional to 310,122.40, 464,888.28 and 99,612.76

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Solution

The fourth proportional to 310,122.40, 464,888.28 and 99,612.76 is: 149,324.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,122.40 : 464,888.28 = 99,612.76 : x
  2. Step 2: Convert to fraction form
    310,122.40/464,888.28 = 99,612.76/x
  3. Step 3: Cross multiply
    310,122.40x = 464,888.28 × 99,612.76
  4. Step 4: Simplify right side
    310,122.40x = 46,308,804,662.45
  5. Step 5: Solve for x
    x = 46,308,804,662.45/310,122.40
  6. Step 6: Final answer
    x = 149,324.28

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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.