Home / 280,914.65-387,567.25-159,970.17

Finding the Fourth Proportional to 280,914.65, 387,567.25 and 159,970.17

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Solution

The fourth proportional to 280,914.65, 387,567.25 and 159,970.17 is: 220,704.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,914.65 : 387,567.25 = 159,970.17 : x
  2. Step 2: Convert to fraction form
    280,914.65/387,567.25 = 159,970.17/x
  3. Step 3: Cross multiply
    280,914.65x = 387,567.25 × 159,970.17
  4. Step 4: Simplify right side
    280,914.65x = 61,999,199,437.93
  5. Step 5: Solve for x
    x = 61,999,199,437.93/280,914.65
  6. Step 6: Final answer
    x = 220,704.76

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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.