Home / 280,792.04-387,448.21-159,935.68

Finding the Fourth Proportional to 280,792.04, 387,448.21 and 159,935.68

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Solution

The fourth proportional to 280,792.04, 387,448.21 and 159,935.68 is: 220,685.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,792.04 : 387,448.21 = 159,935.68 : x
  2. Step 2: Convert to fraction form
    280,792.04/387,448.21 = 159,935.68/x
  3. Step 3: Cross multiply
    280,792.04x = 387,448.21 × 159,935.68
  4. Step 4: Simplify right side
    280,792.04x = 61,966,793,615.36
  5. Step 5: Solve for x
    x = 61,966,793,615.36/280,792.04
  6. Step 6: Final answer
    x = 220,685.72

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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.