Home / 280,916.65-387,570.01-159,972.17

Finding the Fourth Proportional to 280,916.65, 387,570.01 and 159,972.17

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Solution

The fourth proportional to 280,916.65, 387,570.01 and 159,972.17 is: 220,707.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,916.65 : 387,570.01 = 159,972.17 : x
  2. Step 2: Convert to fraction form
    280,916.65/387,570.01 = 159,972.17/x
  3. Step 3: Cross multiply
    280,916.65x = 387,570.01 × 159,972.17
  4. Step 4: Simplify right side
    280,916.65x = 62,000,415,526.62
  5. Step 5: Solve for x
    x = 62,000,415,526.62/280,916.65
  6. Step 6: Final answer
    x = 220,707.51

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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.