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Finding the Fourth Proportional to 416,430.06, 574,674.80 and 225,444.21

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Solution

The fourth proportional to 416,430.06, 574,674.80 and 225,444.21 is: 311,113.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,430.06 : 574,674.80 = 225,444.21 : x
  2. Step 2: Convert to fraction form
    416,430.06/574,674.80 = 225,444.21/x
  3. Step 3: Cross multiply
    416,430.06x = 574,674.80 × 225,444.21
  4. Step 4: Simplify right side
    416,430.06x = 129,557,105,165.69
  5. Step 5: Solve for x
    x = 129,557,105,165.69/416,430.06
  6. Step 6: Final answer
    x = 311,113.72

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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.