Home / 287,521.19-396,781.93-158,464.27

Finding the Fourth Proportional to 287,521.19, 396,781.93 and 158,464.27

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Solution

The fourth proportional to 287,521.19, 396,781.93 and 158,464.27 is: 218,682.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,521.19 : 396,781.93 = 158,464.27 : x
  2. Step 2: Convert to fraction form
    287,521.19/396,781.93 = 158,464.27/x
  3. Step 3: Cross multiply
    287,521.19x = 396,781.93 × 158,464.27
  4. Step 4: Simplify right side
    287,521.19x = 62,875,758,886.64
  5. Step 5: Solve for x
    x = 62,875,758,886.64/287,521.19
  6. Step 6: Final answer
    x = 218,682.17

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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.