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Finding the Fourth Proportional to 219,002.80, 326,920.16 and 192,430.80

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Solution

The fourth proportional to 219,002.80, 326,920.16 and 192,430.80 is: 287,254.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,002.80 : 326,920.16 = 192,430.80 : x
  2. Step 2: Convert to fraction form
    219,002.80/326,920.16 = 192,430.80/x
  3. Step 3: Cross multiply
    219,002.80x = 326,920.16 × 192,430.80
  4. Step 4: Simplify right side
    219,002.80x = 62,909,507,924.93
  5. Step 5: Solve for x
    x = 62,909,507,924.93/219,002.80
  6. Step 6: Final answer
    x = 287,254.35

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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.