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Finding the Fourth Proportional to 151,303.54, 208,809.99 and 108,287.07

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Solution

The fourth proportional to 151,303.54, 208,809.99 and 108,287.07 is: 149,444.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,303.54 : 208,809.99 = 108,287.07 : x
  2. Step 2: Convert to fraction form
    151,303.54/208,809.99 = 108,287.07/x
  3. Step 3: Cross multiply
    151,303.54x = 208,809.99 × 108,287.07
  4. Step 4: Simplify right side
    151,303.54x = 22,611,421,462.39
  5. Step 5: Solve for x
    x = 22,611,421,462.39/151,303.54
  6. Step 6: Final answer
    x = 149,444.10

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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.