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Finding the Fourth Proportional to 612,085.10, 917,471.55 and 232,859.30

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Solution

The fourth proportional to 612,085.10, 917,471.55 and 232,859.30 is: 349,039.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,085.10 : 917,471.55 = 232,859.30 : x
  2. Step 2: Convert to fraction form
    612,085.10/917,471.55 = 232,859.30/x
  3. Step 3: Cross multiply
    612,085.10x = 917,471.55 × 232,859.30
  4. Step 4: Simplify right side
    612,085.10x = 213,641,782,902.92
  5. Step 5: Solve for x
    x = 213,641,782,902.92/612,085.10
  6. Step 6: Final answer
    x = 349,039.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.