Home / 855,230.20-1,282,681.27-256,210.90

Finding the Fourth Proportional to 855,230.20, 1,282,681.27 and 256,210.90

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Solution

The fourth proportional to 855,230.20, 1,282,681.27 and 256,210.90 is: 384,267.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,230.20 : 1,282,681.27 = 256,210.90 : x
  2. Step 2: Convert to fraction form
    855,230.20/1,282,681.27 = 256,210.90/x
  3. Step 3: Cross multiply
    855,230.20x = 1,282,681.27 × 256,210.90
  4. Step 4: Simplify right side
    855,230.20x = 328,636,922,599.84
  5. Step 5: Solve for x
    x = 328,636,922,599.84/855,230.20
  6. Step 6: Final answer
    x = 384,267.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.