Home / 282,193.32-389,436.18-154,875.84

Finding the Fourth Proportional to 282,193.32, 389,436.18 and 154,875.84

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Solution

The fourth proportional to 282,193.32, 389,436.18 and 154,875.84 is: 213,733.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,193.32 : 389,436.18 = 154,875.84 : x
  2. Step 2: Convert to fraction form
    282,193.32/389,436.18 = 154,875.84/x
  3. Step 3: Cross multiply
    282,193.32x = 389,436.18 × 154,875.84
  4. Step 4: Simplify right side
    282,193.32x = 60,314,255,503.89
  5. Step 5: Solve for x
    x = 60,314,255,503.89/282,193.32
  6. Step 6: Final answer
    x = 213,733.82

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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.