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Finding the Fourth Proportional to 225,130.59, 310,677.80 and 123,158.07

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Solution

The fourth proportional to 225,130.59, 310,677.80 and 123,158.07 is: 169,956.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,130.59 : 310,677.80 = 123,158.07 : x
  2. Step 2: Convert to fraction form
    225,130.59/310,677.80 = 123,158.07/x
  3. Step 3: Cross multiply
    225,130.59x = 310,677.80 × 123,158.07
  4. Step 4: Simplify right side
    225,130.59x = 38,262,477,624.06
  5. Step 5: Solve for x
    x = 38,262,477,624.06/225,130.59
  6. Step 6: Final answer
    x = 169,956.81

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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.