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Finding the Fourth Proportional to 310,618.15, 465,927.23 and 100,287.07

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Solution

The fourth proportional to 310,618.15, 465,927.23 and 100,287.07 is: 150,430.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,618.15 : 465,927.23 = 100,287.07 : x
  2. Step 2: Convert to fraction form
    310,618.15/465,927.23 = 100,287.07/x
  3. Step 3: Cross multiply
    310,618.15x = 465,927.23 × 100,287.07
  4. Step 4: Simplify right side
    310,618.15x = 46,726,475,815.82
  5. Step 5: Solve for x
    x = 46,726,475,815.82/310,618.15
  6. Step 6: Final answer
    x = 150,430.60

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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.