Home / 287,511.04-396,767.95-158,454.17

Finding the Fourth Proportional to 287,511.04, 396,767.95 and 158,454.17

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Solution

The fourth proportional to 287,511.04, 396,767.95 and 158,454.17 is: 218,668.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,511.04 : 396,767.95 = 158,454.17 : x
  2. Step 2: Convert to fraction form
    287,511.04/396,767.95 = 158,454.17/x
  3. Step 3: Cross multiply
    287,511.04x = 396,767.95 × 158,454.17
  4. Step 4: Simplify right side
    287,511.04x = 62,869,535,407.58
  5. Step 5: Solve for x
    x = 62,869,535,407.58/287,511.04
  6. Step 6: Final answer
    x = 218,668.25

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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.