Home / 280,022.04-386,428.86-152,694.90

Finding the Fourth Proportional to 280,022.04, 386,428.86 and 152,694.90

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Solution

The fourth proportional to 280,022.04, 386,428.86 and 152,694.90 is: 210,718.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,022.04 : 386,428.86 = 152,694.90 : x
  2. Step 2: Convert to fraction form
    280,022.04/386,428.86 = 152,694.90/x
  3. Step 3: Cross multiply
    280,022.04x = 386,428.86 × 152,694.90
  4. Step 4: Simplify right side
    280,022.04x = 59,005,716,134.81
  5. Step 5: Solve for x
    x = 59,005,716,134.81/280,022.04
  6. Step 6: Final answer
    x = 210,718.11

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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.