Home / 279,623.06-385,897.38-158,718.32

Finding the Fourth Proportional to 279,623.06, 385,897.38 and 158,718.32

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Solution

The fourth proportional to 279,623.06, 385,897.38 and 158,718.32 is: 219,041.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,623.06 : 385,897.38 = 158,718.32 : x
  2. Step 2: Convert to fraction form
    279,623.06/385,897.38 = 158,718.32/x
  3. Step 3: Cross multiply
    279,623.06x = 385,897.38 × 158,718.32
  4. Step 4: Simplify right side
    279,623.06x = 61,248,983,846.00
  5. Step 5: Solve for x
    x = 61,248,983,846.00/279,623.06
  6. Step 6: Final answer
    x = 219,041.25

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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.