Home / 377,740.06-521,312.97-208,006.18

Finding the Fourth Proportional to 377,740.06, 521,312.97 and 208,006.18

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Solution

The fourth proportional to 377,740.06, 521,312.97 and 208,006.18 is: 287,065.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,740.06 : 521,312.97 = 208,006.18 : x
  2. Step 2: Convert to fraction form
    377,740.06/521,312.97 = 208,006.18/x
  3. Step 3: Cross multiply
    377,740.06x = 521,312.97 × 208,006.18
  4. Step 4: Simplify right side
    377,740.06x = 108,436,319,474.16
  5. Step 5: Solve for x
    x = 108,436,319,474.16/377,740.06
  6. Step 6: Final answer
    x = 287,065.98

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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.