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Finding the Fourth Proportional to 225,465.12, 310,433.72 and 191,403

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Solution

The fourth proportional to 225,465.12, 310,433.72 and 191,403 is: 263,534.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,465.12 : 310,433.72 = 191,403 : x
  2. Step 2: Convert to fraction form
    225,465.12/310,433.72 = 191,403/x
  3. Step 3: Cross multiply
    225,465.12x = 310,433.72 × 191,403
  4. Step 4: Simplify right side
    225,465.12x = 59,417,944,352.15
  5. Step 5: Solve for x
    x = 59,417,944,352.15/225,465.12
  6. Step 6: Final answer
    x = 263,534.97

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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.