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Finding the Fourth Proportional to 258,298.08, 356,454.72 and 156,322.32

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Solution

The fourth proportional to 258,298.08, 356,454.72 and 156,322.32 is: 215,726.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,298.08 : 356,454.72 = 156,322.32 : x
  2. Step 2: Convert to fraction form
    258,298.08/356,454.72 = 156,322.32/x
  3. Step 3: Cross multiply
    258,298.08x = 356,454.72 × 156,322.32
  4. Step 4: Simplify right side
    258,298.08x = 55,721,828,805.35
  5. Step 5: Solve for x
    x = 55,721,828,805.35/258,298.08
  6. Step 6: Final answer
    x = 215,726.84

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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.