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Finding the Fourth Proportional to 335,088.62, 500,220.34 and 287,187.26

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Solution

The fourth proportional to 335,088.62, 500,220.34 and 287,187.26 is: 428,713.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,088.62 : 500,220.34 = 287,187.26 : x
  2. Step 2: Convert to fraction form
    335,088.62/500,220.34 = 287,187.26/x
  3. Step 3: Cross multiply
    335,088.62x = 500,220.34 × 287,187.26
  4. Step 4: Simplify right side
    335,088.62x = 143,656,908,840.87
  5. Step 5: Solve for x
    x = 143,656,908,840.87/335,088.62
  6. Step 6: Final answer
    x = 428,713.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.